Sure. Until we have a better organization, whose primary concern is the overall health of society, to distribute it.
Government is certainly a flawed organization. But we currently trust them with all our other tax dollars. I don't see any reason to hold estate tax dollars to a different standard than any other government revenue.
Except that deserving isn't a binary attribute. So pointing out the government is undeserving isn't sufficient.
My point is that we as a society have entrusted government specifically with the job of redistributing wealth to better society and that makes them the better of bad choices.
Government is certainly a flawed organization. But we currently trust them with all our other tax dollars. I don't see any reason to hold estate tax dollars to a different standard than any other government revenue.