Good guy fixer?

Is there such thing. I'm familiar with the role,the era that the game is set etc. The hate the role receives seems warranted in roleplay but even before dice are roled and the game is played it seems like fixer always has a target on there back 1 way or another. Is there such thing as a good guy fixer? Just a dude who does business and keeps it to that. No string, no gotcha, no one over on clients or workers just does buisness above water and upfront. Or is that the nature of the beast is being a slimeball or is it the cost of doing business ?