Do i smell jealousy from the 'nice guys'? You want to do what the 'bad guys' do... and somehow not able to do.... and then complain! So, 'nice guys' are those who didn't have the guts or opportunity to be 'bad'!
LOL or some of us nice-guys actually believe in something bigger than achieving self-ego (of being bad).
Believe it or not - but its the nice guys who are happier in the long run. The badder the boy is - worse life he will get.
Life has a way of giving you what you deserve ... eventually :)