There are data scientist out of the Silicon Valley. In France, salaries for data scientist are mostly 30k€ after tax and social contributions, especially outside of Paris. 1k€ is still largely manageable on this salary but it isn't insignificant.
You've got to be kidding me. In Poland you can make 1.5x that. France must have very high taxes.
Sadly I'm not ^^ This correspond to a full cost for the company a bit bellow 60k€ [0]. We do get many advantages that are paid through those contributions, but the available income is useful when comparing to prices.