What comes into your mind when someone say 'nice guy finish last'? For me, it always toggle between: A) 'a great man who everytime made his sex partner climax first before he himself achieve his climax' and B) 'the jerks alway get the girl'.
After what i been told about 'you' the other day, i think the word itself serves the later meaning better. Even though it isn't much, but know one and you'll know it all.