sorry, like a lot of things, "mega churchs" get that way THROUGH greed.  how else do they have the money to start churchs, own mansions, etc a church, as most define it (NOT JC though, to him the "church" was the people the worshipers, NOT a building, etc) is a building, with a preacher and some support, that their money supports in exchange for his services, with extra money raised for specific issues (building repairs, new bibles, starving people, shelters, etc) NOT for private planes, limos and mansions.  the catholic church is one of the WORST at this, the richest organization and bank in the world, it got that way by TAKING from the people and NOT passing it on to those who needed it, but kept and used for THEIR comfort OVER the people