> Also from the diagram, 75% of the population are earning less than 10,400 EUR while 25% are earning more than 10,400 EUR.
If 25% of the city is making more money than you you are not rich by any definition.
I have friends living in Munich, friend is a SW engineer, makes 75k, his wife has her own business so I'm not sure how much she makes, they are very much middle class lifestyle and can't afford to live in the wealthy areas.
Sorry to burst your bubble but you're not rich if you make 80k/year, you're just (maybe upper) middle class, even in EU.
[1] http://www.salaryexplorer.com/salary-survey.php?loc=982&loct....
Edit: Also it's completely unclear to me how this point relates to your initial gross misrepresentation of compensation in western Europe.
OP suggested that 100k$/year not being noteworthy is a uniquely SV/US thing - it is not. Any place worth living in Europe will take that much to live comfortably (note. 100k USD = 80k EUR)
[1]: https://www.iwkoeln.de/fileadmin/user_upload/HTML/2019/einko...
PS: Data is for Germany.