These benefits are available to all employees at all levels though. Why are people so set on trying to eliminate one of the few benefits even the interns can get to enjoy?

Why on earth would I ever want to work at a company that doesn't value my posture, reduced risk of RSI or the possible ideas/innovation that can come from me chatting/bonding with my coworkers over a beer.

It's a drop in the bucket compared to executive ubers, flights and hotels.