The best type of education someone who manages an airplane can get, IMO, is financial and business related - financial accounting, contract law, negotiation, and taxation. Those were the areas I felt like I needed to improve upon when I was made CP, and I feel like I've benefited myself and my company because of it.

You can get that information from an MBA (what I'm doing VERY part-time), an MS in any number of fields, the Darden aviation program, CAM, your local community college (did that for MBA prerequisites) or "Idiot's Guide To" books.