self-indulgent (adjective)

1. In the novel, the protagonist's self-indulgent lifestyle eventually leads to his downfall.

2. In the distant future, humans have become self-indulgent beings who rely on machines to fulfill their every desire.

3. Why did the self-indulgent vegetable refuse to go to the party? Because it couldn't carrot all!

4. The self-indulgent ghost haunted the mansion, relentlessly satisfying its own dark desires by tormenting the living.