I remember that Tom has stated his opposition to mercenary as a new class, and also to making in any way easier to play the game as a rogue. None of this is asked here however.
He has also stated his belief that nobles acting as mercenaries would not be fitting.
Fighting for money is extremely common, this is just calling it by its name.
And that makes a world of difference.
Especially in the sort of setting we're supposed to be playing on Dwilight.