You should pursue this product -- you have huge possibilities here.
You heard of a company called Security Dynamics? They invented the little token with ever-changing 6-digit numbers that you have to enter to login to your remote office computer. You probably know it today as the RSA SecurID[1]. They created a billion-dollar market and made the founders fabulously rich.
I know that there are other U2F products out there, but you can make yours unique, different in some way, or targeted to different market. Or just compete as an alternative to the larger companies making U2F keys (which are not really that large yet anyway).
Surely continuing this product is better than the "working in government" job you're seeking.
[1] https://upload.wikimedia.org/wikipedia/commons/3/33/RSA-Secu...