Quote: carl_spackler "In which case I doubt you're going to be in line for too much success either way, TBH.'"
As Wellsy said, the honour of competing at the Olympics would be viewed as a success by many. That aside, the same principles apply here as for team sports. You could quite easily argue, for example, that Rangi Chase won't 'be in line for too much success' by switching his allegiance to England. But if he didn't switch, he wouldn't be playing international football.