The news about Senator Larry Craig is actually sad. No one should have to deny themselves to hold a political position.
What is more telling is how many closeted gays/bis there are at relatively high levels in the Republican party, Larry Craig, Lindsay Graham, Ken Mehlman, and persistent rumors about Karl Rove and Denny Hastert, for example.
The flip thing to do would be to suggest that people who hate themselves tend to be Republicans, but I think that it is something far more mundane. Closeted gays are non-threatening.
No matter how energetic they might be, or how devoted they might be to the cause, they are always going to be in subordinate positions, because if the try for the brass ring, they know that their fellow Republicans will destroy them.