Earlier quoted context omitted.
Why ban steroids? Why ban amphetamines? Whyban surgical modification? Why ban genetic engineering? Why ban motorised exo skeletons and nano technology? (I just read a great short story along these lines called ""Slipping" by Lauren Brookes - from the EFF'S PWNING TOMORROW short fiction anthology...)
The same question applies to all of those. If we allow technological enhancements, why is one enhancement too far? You couldn't run the course as fast as you can cycle it, after all. The same argument applies to all those other things - if we allow them then the playing field needs to stay absolutely level otherwise the person who can afford the strongest drugs, the newest gene-splicing, and the most efficient exoske…
Then there's the matter of paying the most for the best coaches, best data analytics to optimize the bio performance of the human individual, etc.
I'd argue that you can't really say that money is the reason for not include or limiting technology. If it's about a level playing field, then money should be the first thing to remove.
How about a random sampling of a country/city's population? Have them compete against each-other. Otherwise, it'll always be about money as it's integral to sport.