The job with the boss who doesn’t appreciate the work being done may be very short lived. Ultimately, the worker may never see the 75K he’s “banking” on.
There’s also a difference between working for a boss who doesn’t appreciate the work and a boss who verbally “mouths off” about his lack of appreciation for the work. The boss who’s silent about his feelings and continues to pay shows that for the time being he accepts the status quo. That may be tolerable. Working for a boss who’s verbally abusive in the way he shows his lack of appreciation might be more difficult to tolerate long term.