My MC eliminated all opposition early and abolished the noble class, leaving himself as the sole ruler. As I said, he would be a perfect villain if you only knew this much about the story.
Nope, he even has a union of the surrounding countries by now, and has spread the technology for steam engines and locomotives around. Not for free, of course.
Of course, it's ahistorical, MC. It is a fucking fantasy world. Funny thing is, no, he is the weakest in physical prowess. He doesn't even have magic. He only has one boon, that is, a perfect memory. That's all.
There is no MC without plot armour. And yes, the fact that every MC succeeds in the end is in itself plot armour. That's why they are the MC, the plot revolves around them.