But in this specific case it's still wrong. I know there are alot of wrong things in Society but that doesn't exempt less wrong behavior. Wrong is wrong, there are no degrees of wrong.
It's like saying "you know what, Politicians are stealing million's of dollars, I'll steal a few hundred from the cash register at work", but thats wrong "no its not, the politicians stole much more, i only took a few hundred so it's not wrong"