Is regional accreditation still important for grad school?

[soliloquy]

Soliloquy, that SEMO program looks fantastic! And I saw the online cost to match in state. I'm loving all those management courses. I have to say I'm having a hard time getting motivated to take more accounting and statistics courses for an MBA. LOL.
Now a Masters in Management degree with an AACSB rating. Wouldn't that be on the opposite ends of the continuum?

The way I intend to use this degree is to supplement my undergrad with a concentration in legal studies. My goal is to get a raise in my current job where I am already a paralegal manager but do not have the salary to go with my position. My employer assures me that if I obtain this Master's degree they can increase my billable rate AND give me a raise. Currently, I am billed at $100.00 per hour. I argued that if they bill me at $125.00 per hour, that is a $37,500 increase in revenue for the firm per year. If they bill me at $150.00 per hour, then it is double that. Either billable rate is well within market rate for my experience, certifications, and eventually degrees.

I am arguing for them to split that "increase" with me 50/50 since they are not offering tuition assistance and it's my studying and my degree in essence that would give them the ability to be able to increase their revenue. I more than cover my own overhead billing 30 hours per week 50 week per year. I had a long conversation with the senior partner about this previously and so far he has agreed (but nothing in writing yet). I would be happy with a raise here as I have no immediate plans to leave but when the senior partner (who I work with) retires, I'll probably be looking for another job - who knows if a better opportunity comes along I may leave even earlier.

With additional managerial experience, my legal studies background, and my Master's, I hope to be able to eventually transition to a larger corporation's legal department or a large firm. I know that the Master's degree is useless without the experience. I can obtain more managerial legal experience here. But, for most of the types of firms I would be interested in working with, an MBA would not be necessary. For example, some attorneys decide to do a JD/MBA combo but it's not extremely useful—unless you want to focus in corporate law, mergers and acquisitions, or bankruptcy, where an MBA could be very valuable.