Wyden seems like a pretty straight guy.
He's represented Oregon since 1981 in the House, and then since 1996 in the Senate.
I think it's a mistake to tar all politicians with the same dirty brush. Wyden has the luxury of very strong backing in his district, so he doesn't have to prostitute himself to get re-elected. And of course one reason he has strong support is that he has a reasoned and substantive approach to the job of a legislator, and his constituency notices.
All that said, I don't think the fight against backdoored encryption will be successful for very much longer.