Well, the complaint stated that his PAYROLL was increased $50K, not necessarily his own pay. I find that phrase in the complaint ambiguous.
I don't believe this will go anywhere, since labor law is almost entirely on the side of the employer, and employment "at will" in most states.
I've been in lots of companies where you don't end up being able to fulfill the duties of your employment terms, and almost every employment contract has the stock language of "other duties as required," i.e. your role is to be determined by your employer.
Nevertheless, this may perhaps provide some insight into SSPX financial mismanagement that perhaps should come to light.