But it also makes me wonder what other roles in these big companies could be elevated. (Random example, perhaps the cleaning staff.)

When I was at Amazon circa 1999 rumor had it that the van driver we saw once a day (he delivered intra-office mail -- is that still a thing?) had at minimum hundreds of thousands of dollars in stock options and maybe much more. Beyond being a tad jealous, it also made me happy that the company would think enough of the "support" staff to make sure they were given the same perks as everyone else, even if they were of a different magnitude.