This just sounds like "thin blue line" rhetoric to me. They are still in a position of power, even over a millionaire.

I don't agree with that framing, but we can agree that they are acting as a projection of the power and privilege of the person they are protecting, and that in acting on that person's behalf, they remove perceived but unlikely potential threats that the average citizen would have to simply tolerate. Even if they're just plain folks in private life, their profession is an expression of power and privilege.