I've tried pitching similar roles in Government on the DoD side of the house for knowledge workers like Software Dev and Data Scientists.

It's hard to get traction though when the folks making the decisions feel threatened that a 25 year old is going to be making the same as them and be the same "rank".

I think part of the solution needs to be creating it on a separate scale than GS, similar to an SL or ST position, but geared specifically towards knowledge workers. That's a solution that would probably require congressional involvement though...