What happened was the set of available moves and rewards has incrementally changed. What has not changed is that nerds are humans, and humans are terrible at resisting increases in status, power, wealth, etc. If the glorified nerds of the past had been offered the same roads to status and power, they would have taken them. This reminds me of the way people think of the olden days when stuff was made of real wood and…
Most of the nerds I knew when I was young were nerds because they valued their interests more than the "boring mundane stuff" around wealth, status, and power. Some of them changed their minds later, but most of them didn't. Once you start seeing yourself as a "person interested in X", it gets difficult to become something else.