Jake had seen many stories of people who knew about the future and used the best first ideas and became millionaires from it, some even hiring the original owners of the companies to be the presidents.
But Jake knew this wasn't real, even if he created a lot of things ahead of time and created patents for it didn't mean it would work because he wasn't aware of it as the original creators would have.
Not to mention that these big companies often had too much luck to earn so much in the future, and hiring the original creators to work was even more impossible unless he gave them a large percentage of stock.
After all, they created these companies with these ideas because they had talent as entrepreneurs and for technology, so even if they didn't have that idea they would have other ideas to be independent, not so successful anymore these people liked independence.