Does it make more sense to think that a grandson should get paid because the grandfather inherited a billion that the son (who dies) wasn't able to spend fast e

Does it make more sense to think that a grandson should get paid because the grandfather inherited a billion that the son (who dies) wasn't able to spend fast enough to squander? Both inheritance scenarios are conventions and both are a bit silly when presented nakedly without nuance. Edit: reworded first couple of words