Fraternity of Order
These folks are sure that everything's got laws. Mankind's got laws. Sigil's got laws. Even the Lower Planes got their laws. Now, once a body's got the laws down, he does pretty well, right? He knows how to use them to his advantage, and how to breaks them without getting caught. If everything's got laws, then there are laws for the whole birdcage - the planes and all that. And if everything's got laws, then those laws can be learned. See where this is going? Learn the laws of the planes and learn how to break 'em, how to use 'em to best advantage. Get to be a real blood, a pro, and a basher'd have real power.
Think of the things a body could do with the laws of the multiverse under his thumb. He could manipulate the very heart of things! It'd make magic seem like a lousy put-up, make a fellow who knew the dark of things a real high-up man. He could find the loopholes of the multiverse, the little spots not covered by any rules, where he could do what he wanted. He'd be tougher than the powers themselves!
'Course, it ain't that easy. The multiverse keep sits laws dark, where a body's not likely to find them. More than a few cutters have got themselves put in the dead-book trying to learn it all. Then there's the powers - it ain't likely they want any sod getting the secrets of more power than them.
So let all the other berks run around, looking for the meaning of the multiverse. It doesn't matter what it all means, because that won't tell a body how it all works. Knowing the operation of things - that's what's important. Who cares what it means when a blood can make it do what he wants?
So how's a fellow to find out? Knowledge - knowledge is power. It takes study, it takes searching. Sometimes a body's got to go out into the planes, and look for answers. Sometimes it takes science, study, and research. There are millions of laws to make this thing go, and the more a body knows, the more he can do.
Allies and Enemies
With their knowledge of laws, Guvners are considered useful by many. They're strong allies of the Mercykillers, who uphold laws, and they're close to the Harmonium. At the other extreme, the Xaositects and the Revolutionary League are both opposed to the Guvners. The Doomguard, while not an enemy, remains suspicious that the Guvners are trying to prolong the life of the Multiverse.
Powers
It's no surprise that the Guvners hold dear gods of order, knowledge, and truth. The faction's beliefs in the superiority (and power) of law doesn't allow for much else. Specifically, faction members pledge themselves to Zeus, Varuna, Paladine of Krynn, Pholtus of Oerth, and Tyr (of both Toril and the Aesir).
The Guvners also appreciate Lu Hsing of the Celestial Bureaucracy - truth is, they look up to (an often model themselves after) most gods of the Bureaucracy. And they admire any powers who swear by knowledge as a means of life, including: Athena, Avani, Bahamut, Boccob, Brihaspati, Gilean, Jazirian, Koriel, Maanzecorian, Mishakal, Oghma, Rao, Shekinester, Thoth, and Zivilyn (an extensive list, but the Guvners are nothing if not thorough).
It's important to note: The faction doesn't worship the chaotic gods of knowledge. They feel that any wisdom that comes from chaos is tainted.