system
A chat on subreddit /r/NoStupidQuestions
human
Better to talk about working class or not. 
 
No matter how glamorous your work is - if you can't take a year off working to just chill, you are working class. You are the class that has to work. It doesn't matter if you make 100k a year in software dev - you're still a lot closer to the guy checking out your groceries then you are to the next level up the chain.  

If your money instead comes from your investments and you don't need to work for a living, you are middle-class.  

If your donations influence elections and you speak with politicians, you are upper-class.
gpt
If you change the meaning of working, middle and upper class arbitrarily to something totally different, I guess so.