I can imagine that standardization is a way of control. However, when we were still "in" we were told that the bOrg bought chairs and equipment in bulk, so that's why all those particular things were standard.
But I also remember way back in the day (60s, 70s, 80s) that KHs were built and decorated with local talent, sometimes with disastrous results. One in particular was replaced by a new hall built about a mile away. The old KH was such a disaster (and grandfathered-in to an older residential neighborhood) it took two years to sell.
So, if I'm running a business that builds properties with the eye of reselling them when necessary, I'm going to build generic buildings that will meet commercial design and codes so that when I want to sell them, a doctor, preschool, or even another church will find them in turnkey condition. You can make more money in less time that way. But I'm going to sell it to the sheep as being an upgrade that's to their benefit, so they'll keep contributing.