The laws of the universe dictates that he wasted all his brownie points on beating Kars AND surviving a meteorologic re-entry from the stratosphere. But hey, at least he also was able to squeeze in getting a cool robotic hand.

Joseph don't worry, you don't need a good stand to be awesome, you launched a guy into space with sheer dumb luck, if you were still the main character you could have killed Dio with one hand removed.