D&D is a game about fighting bad guys and getting treasure at its roots. But, as we focus more and more on interesting story beats, roleplaying and so forth, it gets harder to find ways to legitimize having someone find 500 gold pieces next to the giant centipede they just killed.
This would go over ways to make treasure interesting, and how to scatter it through your game instead of just turning monsters into Loot Pinatas. Or maybe even creating in universe reasons for why they would be treated like actual loot pinatas.