I have no idea what you're talking about or thinking about. A percentage of tax receipts? Why on earth would that make more sense than just money up front?
I’ll grant you that dusty old war bonds are unlikely to get strapping young devs very excited, but I’m sure that they can come up with a higher risk, higher reward financial instrument with some imagination.
In a smaller company, the stock may appreciate due to your actions, but there's absolutely no reason to think most employees would do anything that moves Google's stock price. And even less to think anyone would do anything that would impact US government tax receipts.
Working for Google and getting RSUs isn't really higher-risk, higher reward compared to a salary.