I'm sorry, but neither Sportsmanship scores nor Painting awards help to avoid dickheads with too much money winning tournaments, because if you can afford to buy 5+ flyers, you can afford to get your army comission painted, and so long as you're not a total mong, you won't at least get penalties to your score on the sportsmanship front.

Of course, you could be a good painter, a nice guy, and happen to have lots of money to spend. In which case you're getting a leg up on all three fronts instead of just one. Again, a good argument against their inclusion.