If I can't have it no one can

When Shlomo switches to the amal's point of view, working to make a difference in the world, he finds himself with a few problems. One of his problems is of course, what will happen after he dies. He can build a beautiful mansion and live happily in it but what will happen to all his hard work when he dies? An obvious solution is that he will give it to his children. Shlomo however has a different mindset. He doesn't care that he really does have someone he can give his stuff to, if he can't have it he doesn't want anyone else to have it. This seems to be quite selfish. Life isn't just about just helping yourself, its about helping the world too. The amal seems to want to help the world so I'm not sure why he doesn't see this too.