So , did you ever win a game that you felt bad about afterwards?

[Der Kuenstler]

If people were actually losing something tangible and important I would feel bad, but it is only a game. All of our "permanent" game results are only here as long as the owners desire them to be. When you lose a game it stings, but nothing is really lost save a little ego, and perhaps the realization that life isn't always fair, which is good for all of us.

I try to take personal responsibility for all of my losses - no matter what. Looking back I find they were all a result of my own lack of preparation. Either I didn't know the rules well enough, the units well enough, the tactical situation well enough, the scenario well enough, or the player well enough. If someone is lazy about understanding these things and thus less prepared than I am, then they deserve to lose.
(that's Eastern Front thinking - lol)