Worse, they act like greed is bad.
I've always been of the opinion that envy is the true evil. They are two different things.
Both are bad in my opinion, and really they are two sides of the same coin. Both are results of loving objects too much, but one from the perspective of a person who possesses the item, and the other from a person who does not.
The real issue is that liberals mis-define conservative behavior as greedy. Conservatives, in general, want to have control over where the money they earn go, but multiple studies have shown the conservatives are much more generous individuals than liberals. We believe that we can best determine how to use our money to help others. Liberals look at the fact that we dislike the government taking our money to spend on others, without looking at where the money actually ends up going.