Prison Break... it's a bit grim...

I know that it's about convicts on the run from numerous people who want them all dead, but surely it doesn't have to be so grim? I suppose I'm mainly talking about Prison Break Season 2. Even some of the bad guys you start feeling for (Mahone, Bellick, the guy working for the female president), because they end up way over their head and they just want to go home and have a nice cuppa tea. I mean obviously there are people (Kim, T-Bag) who should have been killed / incarcerated years ago. When will there ever be a happy ending though?