Mirrors my experience. It is almost painful to watch some of these washed-up OG engineers. I worked at a company that followed a similar trajectory to Google (scaled down quite a bit, of course) and there was a special team reserved for those people where they were working on strange and irrelevant problems of their own devising. Presumably to avoid irking any of the hard-driving execs, they reported directly to the CEO. At one point I sat next to them in the office and couldn't help but notice that on any given day there barely was half of them present. I remember thinking that despite them all being filthy rich it was a very unappealing position to end up in.

Another guy I worked directly with. He had at some point a couple hundred reports, but downshifted to an ordinary engineer. I was struck by how profoundly chill and unambitious he was, how indifferent to flaws in his code (entirely lacking any kind of engineer's pride). But at least he was doing honest and useful work.

The stories they tell are golden though.

As an aside, isn't it a strange quirk in our capitalist society that we perceive workers that were vital for early success but then stopped contributing much as "leeches" but early investors who do the same are totally OK and rightfully own their share of the later pie?