It was my understanding that the names for these things came about to help facilitate negotiations with prostitutes, which would make them jobs. These actions didn’t require names in any other social context because missionary was the only socially acceptable sex act and anything else was simply “sin”.
This isn’t a capitalist failing, it’s a religious failing.
You can do a quick web search for the etymology of some of the words, but since it’s slang, and sex slang at that, it’s mostly speculation and difficult to find an irrefutable source.
Even the word blow in blowjob has several possible origins. It could be from the Latin fellatus - to suck, move air with your mouth, blow. Or it could be blow like explode, as in orgasm. Or it could be from Victorian era prostitutes who used the term ‘below job’.