Better on your screen than out on the streets.
When people can actually show a direct correlation between video game violence and mass murdering psychopaths being influenced by them, then I will start to think that hey, maybe there is something to it. At the moment, they just make it fit the other way around - oh noes these kids shot up the school, they played evil games and listened to metal, those must definitely be negative influences that turned them in to psychos! Bullshit. Bad parenting and / or genetics turned them in to gun toting savages long before any animated form of entertainment came along.
If you make a good enough game that it doesn't have to rely on violence to be successful then kudos to you. But just take a look at what sells well and what doesn't - your market dictates what kind of game is going to make you more money!
