Invested / Endowed Value - Having already spent time and money to improve your status in the game, it’s difficult to throw it away.
Isn’t that every game? I can’t think of a single game, back to old Atari 2600 or arcade games, that doesn’t have this element. Many people are playing to see how far they can get, to beat the game.
Equally? That seems optimistic. He’ll go even farther off the deep end. Even if he wins, he’ll contest it, because he clearly should have won by a larger margin.