Dayum, there's a debate about morality (and what MC should've done) below...
I'll add fuel to the fire then!
If you somewhat found yourself "isekai'd", you need to understand first and foremost, the settings of it. If it's a "tragedy", it's best to go "shoot first, ask questions later" mentality, if it's like this kind of world...
Can you at least change your name so the ones who summoned you don't find you? And, y'know, change your looks so it won't be easy for them to track you? Also, he has a lot of cheat skills that can break the common knowledge of that world, he can start his own kingdom (if he's cunning and knows what running a country means) or his own business; he doesn't have to lower himself.
Also, if he can dish out a lot of money, why not hire a group of professional adventurers to take him down the rabbit hole of a dungeon, collect easy exp and materials at the same time? So many solutions/routes to take...
But I can understand people who want to live life slow, frankly I like "slice of life" manga.
(I even read shoujo manga with "reverse harem" troupes.)