Is there any benefit to destroying non-target breakable objects?
Some destructibles that aren't directly targetable do nothing upon being broken, but there are a few that drop loot depending on the setting.
For example, crystals jutting out of the ground in caverns and mines can drop ember shards, which are hugely valuable for upgrading weapons and gear. However, most lanterns and other light-emitting objects give nothing.
Also, any destructible you hit continues building charge. So can destroy them while you travel around to maintain charge.
Some upgrade-able weapons are just "Kill 25 to upgrade". Breakables count towards this