Humans are wierd.

They'll overvalue some little things, like the "free pizza in meetings", "childcare discount" or the "airport lounge access", while not paying anywhere as much attention proportionally to the $150k of salary.

That (and tax breaks) are the only reason for employment to give any benefits apart from raw salary anyway. In an economists world, the employee is always better placed to decide what to spend their compensation on, so it should all be money.