Them 'environment' lol, swimming is about an individual of a sport as you can get. He wouldn't give a crap about anybody else that he's not in direct competition with, sorry but in reality they have absolutely nothing to do with him.Still representing the same country in a team environment "Australian swim team".
But sure ruining Australia's fair play reputation in favour of being known as cheats ala Essendon and the Australian men's cricket team is a-ok.