Zuck collects private information and uses it to sell advertising.
Elon runs a car company.
What do they have to do with CS?
What do they have to do with CS?
Zuck... I mean you're kidding right? Facebook literally wrote their own c++ strings that's optimized for their specific use case, made their own php interpreter, have open source c++ libraries, etc.
Also I just don't think normies differentiate between tech in general and computer science.