Investors in a corporation don't want individual teams to spend money "just because it was budgeted, even if we didn't have a good thing to spend it on".

I, as a manager of a team at a corporation, of course have a partially adversarial relationship with investor goals; I want my team to be happy, in part because happier teams often are more productive, but in large part also because it's just nice to spend my work life working side by side with people who are enjoying their perks.

If my entertainment budget directly (or even partially) reduced my team's bonus pool, that would be crappy for team cohesion, but it would probably make me think more carefully about taking everyone out to lunch.