You fail to see the point.
If I were gay and I can get money out of it seeing the political environment why not take advantage? What point does that prove, is it not being selfish?
Being selfish is the sole reasoning coming out until he prove me otherwise? Michael Sam did and looked what has happened. Media still clings to him and he is not a good football player. Wise life management there getting paid because you have a different lifestyle. I couldn't live with myself if I use that mentality to make money.
My point is that what he's done since coming out is largely irrelevant in the context of what his announcement did for others. However you choose to interpret his actions after the fact should not change the act itself. The way that many of the league's star players and leaders responded to the very real occurrence of an openly gay player entering the league was a huge stepping stone for future homosexual players who might be concerned with whether or not they'd be accepted in a sport like football. Nothing Sam did to make some extra money or gain some more publicity after that fact should negate that.