Just remember the built in draw backs...
If you kept him on all the time - its a waste of an officer slot
2 billion a day is a big chunk for lower levels
It takes 12 hour to fire a current officer (unless you paid 5 gp)
You can't have HIRED an officer in the past 3 days
And it costs 30 gp (which is more than the 20gp for a race change that everyone can do now WITHOUT these same restrictions)

I doubt Dan would ever want people to be able to be Fixers without paying - that sort of race change must make him a ton of money. Plus, I agree that it could make base fights ridiculous - you could have everyone have the officer and so get the bonus for 60 people.

I don't think there should be an officer for every race/profession. Ideally 1-2 at the most. Basically enough that its a little easier to do some things like legion missions if you're willing to sacrifice an officer slot. But of course, it would also be another limiting factor for Xectiphage towers too.

I initially had the race/profession officers affect artifacts and missions only, and maybe that's for the best - they just wouldn't be factored in to bases at all. This way they wouldn't affect base abilities.