As a conractor, he should have known (and probably did know) better than to expect support, training or anything else from the companies he worked for.
But don't forget that, in the 80s, we were the enthusiasts, the evangelists for CAD, the ones who figured out how to make it useful.
Don't assume that experience and enthusiasm are always incompatible.
Honesty forces me to add that, as you get older, it becomes harder to learn new ways and harder still to forget old ways. - old dogs, new tricks syndrome.
"With or without religion, you would have good people doing good things and evil people doing evil things. But for good people to do evil things, that takes religion." - Steven Weinberg.