Indeed. What seems to happen is that people who like following winners are prepared to excuse behaviour and personality traits that they wouldn't tolerate in a 'lesser' person. You don't have to be an peanut to be a champion and Chris Hoy is the example I always use when this crops up.
Again this is why I said "most"...
This should be taken in the original context of :
Here's one I've always thought relevant; why is it that one branch of medicine - pharmacology - is mostly illegal while another branch of medicine - psychology - is considered perfectly acceptable?
There are always going to be exceptions, and the extremes will always be that - extremes.
But it is not that clear cut, Graeme Obree is another example where the psychological profile drives the individual. His is a far more complex and difficult one, but would he have been as successful without this part of his make-up?