On the person 'supplying trust & owned property and getting a stablecoin loan', the other side of some Dai loans, there is real value being created there as they can use cheaper credit to invest in their business.
Most of the value goes to people in places like Argentina & Nigeria facing massive inflation who are now able to hold an asset that is backed to the dollar and overcollaterized by crypto, western bonds, & real properties held in the West, which is a better option than pretty much anything they can get in their home country.