Well I mean if it wasn't for Steve Jobs we probably wouldn't have had iPods, iPhones, Macs etc. but besides some individual design choices it's not like it was he personally who made them. I still think it's still reasonable for him to have much of the credit. You can change half of the engineers and designers and still end up with the same product but if you change Steve then you wont. I think this pretty much applies to the stuff Elon is doing aswell. It's not him building and placing the implants but without him there wouldn't be implants to begin with.