Team GB was an Olympic triumph of public spending. Now can we please invest in everyone else | David Goldblatt

In the early 20th century, the International Olympic Committee (IOC) refused to publish medals tables, considering them vulgar and a goad to competitive nationalism rather than the cooperative internationalism that the Games were meant to nurture. It heartily disapproved of the US press which invented them as part of its coverage of the 1908 London Games as a way of selling papers and tracking the US’s sporting ascent and Britain’s decline. The IOC has since made its peace with the medals table , and at each Games it is offered – especially for those at the top – as a measure of national prowess and power.

How then to read Team GB’s performance at Paris 2024, seventh in the table with 14 golds and 65 medals in total? By the first two criteria, this marks a decline from the highs of London 2012 (29 golds and third in the table) and Rio 2016 (27 golds and second in the table), though that this should appear disappointing is a measure of the transformation of UK elite sport since the Olympic nadir of Atlanta 1996 where the UK won just one gold medal and finished 36th in the rankings. That said, the total number of medals won is about the same as recent Olympics and, given the small margins of elite competition, the UK could easily have finished higher up the table.

In this light, Paris 2024 is confirmation that the UK has, given its population size, sporting cultures and wealth – the main determinants of Olympic success – performed at least as well as it should; not overperforming like Australia (18 golds with a smaller population) but better than Italy or Germany or Canada. Given where the UK ends up in most tables of international comparison these days, this is no mean feat. The key reason for this is that for more than a quarter of a century the Treasury and the national lottery have, though UK Sport , been directing about £100m a year to elite sport, with a ruthless allocation process focusing funds on potential medallists.

Of course, UK Sport has been well managed, and innovative cultures of coaching and development have been pioneered in key sports such as cycling, but the money is the most important thing. Since the Olympics abandoned amateurism in 1992 , success is simply all but impossible without access to high-level facilities, coaching and funding. Given that very few sports have a commercial form that can sustain a serious pool of elite athletes in full-time training (and the US model of college sport is not replicable here), state sinecures – like in many other nations – are the bedrock of British success.

Has it been a good investment? Certainly, there has been a lot of excitement, entertainment, joy and pride; all of which is good. While the anti-migrant riots that raged alongside the Games have been fuelled by an ugly racist component, Team GB has been a celebration of our diversity. However, other longer-term public benefits are harder to discern. Certainly levels of participation in sport and everyday physical activity – a central rationale for investing in elite sport – have not significantly risen alongside our Olympic success.

This was always a quixotic hope. Olympians are exceptional rather than the norm, their motivations and practices quite different from much of the population. No amount of sport on television, and no amount of gold medal ceremonies, have been able to arrest the long-term decline in young people’s activity rates, the obesity crisis , or the sedentary nature of most of our lives.

Given that, if we want to take a positive message away from Paris 2024, it is that targeted public investment works. Yes, it matters how and where it is spent, but whatever the patterns of causation, there is absolutely no chance of transforming the activity rate, and the mental and physical health of the nation, without spending a lot more money, especially in poorer areas.

Related: The Guardian view on the Paris Olympics: a space for some joie de vivre | Editorial

Sport England, and its equivalents in Scotland, Wales and Northern Ireland, which are responsible for developing grassroots sport, are working with a budget of about £250m for the whole country; a figure so small, in terms of public expenditure, that it would otherwise only buy a handful of fighter jets or a single large hospital. Local authorities responsible for leisure centres and community sport have been devastated by 14 years of austerity and are closing swimming pools, selling off green spaces and spending less than half of what they did on recreation a decade and a half ago.

In any reasonable model of public accounting, a sustained investment in the nation’s playing fields, sporting facilities, school sports, community programmes and, above all, staffing – in the billions rather than millions – and a similar level of investment in making walking and cycling the norm for urban transport, would be an immediate priority with huge and obvious health and economic benefits. At a fraction of the cost, it would deliver better and more egalitarian outcomes than the £11bn we spend on the roads every year, and given the scale of sickness at work, deliver a greater boost to the nation’s productivity.

The UK’s Olympic athletic model may not get us off the sofa, but if we were to adopt its ambition, focus and scale up the funding, it might: and that would be an Olympic legacy without parallel.

• David Goldblatt is the author of The Ball is Round: A Global History of Football and The Game of Our Lives