I actually played a game where whales spent huge amount of money, after a while it continued mostly because I wanted to understand who these people were.

Several are exactly like you describe, others need the anchor of money to loose as to feel invested, others simply have a lot of money and for whatever reason want to win in a game, and others simply thrive on causing misfortune to others through their financial advantage.

Those very whale friendly games are, as a sort of ecosystem echo, as fascinating as they are disturbing.