Clearly, flash games in web pages is not to be counted with regards to political messages, huh? I encounter that stuff at places like www.newgrounds.com - a veritable hive of degradation and villainy where the occasional gem can be found.
That said though, I find games to be either very subtle in the political stances or pragmatic simply because a team of people built the damn things. Unless perhaps you are developing The Political (USA) Machine, which if I recall correctly is Stardock and available on Impulse, where it is a goal of the game to get specifically political, politics in a game is not so much pushed to the side but a practice in compromise and cooperation.
In my humble opinion, games can and do bring us together, even while we maintain our individuality. It is disappointing to see the broad brush gamers can be painted with at times thanks to less than stellar representatives of our community gaining the spot light for sensational intentions, like at civil and peaceful protests its not usually individuals in suits and other modes of dress that are the accepted norm who get camera time but the colorful and 'shocking' individuals - often those the other protesters regard as fanatics. Gamers on the whole get along with each other, see common ground and find common cause in defeating our virtual enemies, even when that may be another player, there is understanding. There is a reason things like PAX exist and it doesn't break out into violent riots.
Extremists, despite what some fan boys of a particular gaming brand may have you believe, are at odds to what games do. You can't exactly have a game with people who insist on having confrontation, now can you? So you compromise and learn to get along or you don't play.
Does that mean games are a conduit for complacency and conformity though? Not necessarily because a game only makes sense if the individuals are having fun. A game needs to meet the needs of the individuals to satisfy the community as a whole, without that there is no community. Games as a business are about tapping what communities find to be fun. Could there be anything more political than that?