Well, I think that a lot of the world's technology is based on Tesla's work that was stolen by the government. If Rockefeller had not pulled Tesla's funding after realising that he was trying to develop free energy, which would have made Rockefeller oil obsolete, I think we would be looking at an entirely different world today.
In truth, based on what I have read about him since arriving here, I have developed quite a fondness for him. He has become somewhat of a personal hero of mine- like the Azor Ahai of this realm. I wouldn't be surprised if Tesla was somehow responsible for the construction of the great wall back in Westeros...
Interesting image you have shared there.. It seems rather hypnotizing...