And for secrecy, the church got screwed pretty hard early on (driven from place to place, leadership beaten and murdered, forced to move west, investigated by the military, etc). It makes complete sense to only give out as much information as you can, especially when there are so many looking to destroy the church and if you assume that the devil is literally behind people trying to destroy the church. It's a very different type of secrecy compared to other groups, like Scientologists, at least that's the way it feels to me.

And yes, I completely agree that the church should probably adjust its focus a bit. I think the church has plenty in the bank, so what's wrong with having most of the income used for feeding the poor and everything else Jesus recommended?

However, that's really not my call, and IMO it's not really my business. I give my tithing because I'm asked to, not because I think the church will use it optimally. It's a show of obedience to God and faith that the leadership is being a good steward of that money. It isn't my choice how the church leadership chooses to use that money, it's my choice whether to give, and it's my choice whether to give extra to causes I believe in. So I do. I give to the church as well as other causes I believe in. Jesus recommended to give everything, and I feel like I do pretty much the same thing as the church (most excess goes to investments, which I hope will allow me to dedicate my life to helping others once I retire, hopefully early).