Genjitsu Shugi Yuusha no Oukoku Saikenki

[Kraco]

I find these "television show stuff" stupid and uninteresting.
Building a new port and implementing new laws and all that kind of stuff was more interesting.

I also found them stupid and uninteresting, but realistically they would be a masterstroke. That being said, there's no way the rulers of that world wouldn't already be using them to control and brainwash the population. It's just the tired isekai trope that the locals won't even use their own resources properly before the mighty Japanese man tells them how to do it.