You have a point. It doesn't work at some point with American football, and also at some point with basketball. Sports that pretty much require a specific body type and unique athleticism at the extremes have their own inherent thresholds/requirements that no amount of money can broach. But I'd venture that's a minority of sports, rather than the bulk of them. If you just take the five big professional men's sports in the US (Football/Basketball/Baseball/Hockey/Soccer), 2 of them are completely amenable to a "normal" body type, 1 of them less so - but still quite possible. 2 of them as described above are off-limits unless someone already fits the mold - regardless of any additional factors. Once you go past those 5 to the dozens of other sports (skiing, bowling, curling, fishing, whatever) - most of them aren't nearly as restrictive as football or basketball either.