Definitely +1
Highlighting empty containers in grey and full in yellow rather than making them clickable/non clickable would be perfectly fine.
And please, think about rationalizing the distribution of loots.
Goblins treasure : 5 chests - 2 empty, 1 with +-200 gold, 1 with +- 20 gold, 1 with +- 5 gold...
=> 3 chests : 2 empty, 1 with +- 225 gold...