you shouldn't compare Satoshi with people such as Buterin because while Satoshi created bitcoin to change the world, they created their altcoins to make money (change their own life by getting rich). that is why they keep advertising their coin.
You are correct bro, there is a huge difference between a person that wanted to change the world with their creations and ideas to a person that wanted to gain fame and money with a copied technology(added some few innovations). I do really give huge respect to the guy who started this all "Satoshi Nakamoto"

Let's think together why Satoshi so zealously guards his anonymity for a large number of years.
are YOU a zealot? or maybe a scammer? because that is my conclusion of your post, anybody who is not revealing his or her identity must have an evil intention and you didn't reveal your identity here either!
to answer your question about why Satoshi has never revealed his identity, it is because it wouldn't make a difference. why would you want to know it anyways? why do you care? bitcoin is a decentralized system that doesn't have an "owner" unlike all these centralized shitcoins. knowing who Satoshi is, can lead to that mentality of centralizing it to one person and looking up to him for every decision.
There is a reason why the legendary Satoshi Nakamoto never revealed his identity and he is the one who knows about it. I think Satoshi Nakamoto is really a humble and down to earth person that doesn't want to brag about his creation and ideas that changed the world and maybe he doesn't want any kind of fame like a lot of people likes. Not all anonymous people are evil people with hidden agendas and it can be compared it to those people who donate their money for a cause without revealing their identity. But today anonymity in the crypto space is being abused by evildoers especially on ICO's just like what happened in 2017 where a lot of anonymous ICO teams turn out to be purely scam projects.