As an agnostic who has been seriously proselytized by a couple of my LDS friends, I am never likely to be Sealed in the Temple.  That being said, their social system is absolutely top notch.  If an LDS person is 'down on their luck', other LDS are there with food, housing, whatever is necessary.  The person helped doesn't get a free ride, however.  They are required to provide labor or whatever they can which some other LDS person needs.  If a widowed LDS woman needs help, ten LDS guys show up on Saturday to help her move, mow her lawn, whatever.  Their preachers do not get paid.  Sometimes, the janitor gets paid, but usually LDS people show up and take care of that too.  Their requirement to have a year's worth of food on hand per household should be emulated by anyone in an earthquake or flood zone but isn't.  I'm not too enthused about their no alcohol, no tobacco attitude; no recreational drugs works for me.   Their theology and polygamy are the only downsides I see.