Look at history, read the bible and you will see that committing even a small bad act for the greater good has NEVER worked and has actually often lead to even worse outcomes.
Bad is bad, evil is evil, in truth there are no lesser of evils it just that some are like mountains you can pretty much see it all and some are like icebergs you can only see just a very small part of them.
alrightie then, have it.
Obama 2012