Again, they are not part of the capital class. They were lucky to come across a special moment in time where there was a paradigm shift bringing with it enormous wealth and the capital class did not part with some of their wealth out of charity but out of greed because they realized that in order to capture this new found fountain of wealth they needed engineers...at least for the time being.
This allowed one generation (maybe two) to live a dignified solid upper middle class life but since the beginning there has always been a push to eliminate them.
Things such as low/no code, "learn to code", bootcamps, and now AI are attempts to destroy this avenue for people to rise above anything more than just worker class.