It supports the artist, it doesn't matter if they "deserve it" or not. You aren't entitled to just take whatever you want without paying because YOU don't think you should have to.
If you think $0.99 for a song or $12 for the album is too much, your first reaction shouldn't be "oh I'll just steal it", it should be "well I guess I won't buy it, maybe wait for a price drop".
Maybe you should get off your high horse and start thinking realistically.
Music don't have price drops anymore. And technically it's considered file sharing, not stealing.