Finally, sane person. It’s an out-of-this-world kind of plagiarism. Technically, it's an ‘original’ idea in their world because it doesn’t exist there. It's not even an argument to say that there would be people who will develop those things in the future, she reincarnated into a fantasy world, not regress back in time. So those geniuses and inventors would NEVER exist. Them existing would be weird for the setting.
Besides, ever since she reincarnated although she is a doormat in her past life, the natural nature of the character she reincarnated to is obviously the opposite of that. I really appreciate the effort of the author who actually did some a bit of research into this work in comparison to similar stories with full fuckedy, although it could be better.

ok hear me out... I might or might not have been too kind sometimes in the past...
But it also happens that I'm a designer, with a mention on products and services at that (I can go from products, interior design to even experience design), so all the ideas she has come up with, even tho diabolic, make a lot of sense to me if you need money to save your life from being someone which only 2 other destinies without enough money are: 1. marry who knows what kinda person. 2. monastery (bye freedom)
btw isidor-guild master said the mages receive enough money to pay a suscription that costs that much, all this time she's made a very well informed job (if I remember well, those patents were supposed to end after a certain years, was it my idea?) so even tho diabolic... I think it isn't such bad thing to get freedom /^ . ᆺ . ^ฅ
to end the idea, let's say there was going to exist people who was going to develop those later in that world so she kinda robbed that from them; she's making thesis for each thing, so she's leaving knowledge to advance further, technology should go faster there ˶ˆᗜˆ˵)b