High tech buildings and their use

[Arkatreides]

Playing as the Brits, I managed to build virtually every single building available on the ttech tree, but I am really confused about the use of some of the non-unit-producing types, like military academy. I know that for muslims this gives you some extra units, but for catholics it seems like it does nothing (apart from that title of office thingy - but waiting 10 years for that and paying 10000 florins is a bit silly) So what's the deal with these buildings?

[youssof_Toda]

Giving such titles to some of ur generals increases both their loyalty and their skills, I'd say that is worthwhile.

[malkuth]

It as gives bonuses to units built in the same providence as the Academy.