Wait what? The Atelier master can see the MCs skill level without any external instrument to measure it? 😮
She can't measure MC's skill level. But she can see the results of his work, and as a fellow craftsperson, she knows just how extraordinary they are.
@johnpoop2529 this MC is too beta to have a harem, he doesnt deserves one.
You clearly haven't been reading enough harem comedies. While the likes of Rance or Dark Shneider sometimes have harems, they are much more likely to just fall on some ordinary guy who can't possibly handle having a harem.
The fact that apparently high rank mages only make as much in a year as repairing a castle wall...
Repairing castle walls with realistic methods is very expensive. Something like 100 people-years worth of work is very much possible.
In which case, she is making about 100 times as much as an ordinary worker. That seems about right for a fantasy mage working for the government. She probably could earn more money if she worked in commerce or was corrupt, just like in real life, but people like her rarely work for money.