I think my 'virtue' is also my biggest flaw. because I often can't turn it off...
I'm a very kind and sometimes very charitable person... however this chomps me in the rump more often than not.
Example: I play Vindictus, which is a fantasy FTP MMORPG. However, when I get beyond 3million in Gold, I suddenly get this stupid tick that says
"psh, I've got tons of gold! I can TOTALLY buy this guy/lady who I don't friggin know from Adam a better weapon...."
Nevermind the fact that these lovely equipment upgrades I'm buying others can start costing 1mil and up in price and in the end just don't pay me back and doesn't get me towards my own upgrade goals..
instead I'm in a constant loop of trying to make money, but ultimately losing what I make faster than I can make it... and thus I end up so poor I can't afford a simple enchant scroll for my gear, or an enhancement upgrade for my armor.