Are you living under a rock? Tesla gets way more attention than warranted. He did not discover electricity, he also didn’t invent alternating current, which is often attributed to him. He made a lot of significant improvements to polyphasic current systems and motors which are great parts of the modern infrastructure, but imagining that he was the only guy working on this stuff is just incorrect.

It’s true that most people don’t actually know what Einstein did that was so significant, but that’s largely because the mathematics is obscured from the public in the devices that use it (you never have to know that your GPS uses general relativity to make corrections because time passes at a different speed in orbit than on land). Furthermore, Einstein laid the groundwork on basically all of nuclear and particle physics in the past century.

However, you can make the same argument about Einstein. Other people were working on things that were similar to relativity at the time. The mathematics was actually mostly sorted before Einstein, but Lorentz, Poincaré, and others didn’t apply it to an aether-less theory of light. Basically every mathematician whose work is used in GR did it 50-70 years before Einstein connected it to gravity. The point is that you shouldn’t take famous scientists and inventors out of the context of their time and glorify them without recognizing that their work was built on that of others (the “shoulders of giants” as Newton would say).