Great point. I think a couple good things happen for the Jazz on contracts
1. You get the potential of finding the diamond in the rough players at a discount, like you mentioned. This is just something that winning organizations repeatedly do. The Patriots. The Spurs. To a lesser extent, I think the Warriors have done this.
2. Getting players on multi-year non-guaranteed contracts has allowed the Jazz to have extra flexibility to clear up cap space or complete trades. Most of the time it takes a little bit bigger non-guaranteed contract to make a difference in completing a deal (like Korver on the Conley Trade), but it wasn't very long ago that Olivier Hanlan helped the Jazz get Boris Diaw for basically nothing.