The problem is, when someone has so much power to do this, ideologies don't matter anymore, and there's no argument that can best the "will of the people", because if the will of the people is wrong, then the people are wrong too, and since they are the majority, you're screwed with your logic (and rationality).
I'm saying these, because it's important to note that communism as an abstract idea is not worse or better than any other form of government, such as feudalism, or fascism. Ideally all could work. Given an ample supply of good kings, incorruptible premier secretaries and supreme leaders, and so on.
Naturally, the problems are foreseeable, so individual power should be limited. What better way to do that than to remove even the power of wealth generation? Bam! Instant communism, again.
And this works with property rights too. Someone offers you a very good deal on a crate of gold, you buy it. It turns out it was stolen from a national bank. But reversing that transaction would violate your property rights. (How far you would have to go to make sure you're not buying contraband/bootlegged stuff? Anyone can make up an example where you have done enough yet a lot of people will suffer as a result of your gains.)
The socialist / communist people who elected him created the monster that he became, so those who wanted the platform elected and in his mind instilled his beliefs as "the will of the people" that we hear so much from those who are marginally elected.
No one ever wants to elect a dictator, however, the requirements of a socialist / communist leader lends itself much more to developing one when one utters: "It is the will of the people" to supersede the property rights of others.