Yesterday it was announced that the international community has paid $920 million to the PA in the past six months.
The PA has already admitted that 58% of its budget is spent in Gaza, despite the international sanctions against the terror group Hamas that controls it.
So the world has supplied Hamas with over a half billion dollars so far this year. Even if Hamas doesn't get it directly, it benefits mightily, allowing it to gain revenue from "taxes" as well as direct theft, not to mention making sure that none of the money that Hamas gets from other sources needs to be used for helping the people it has control over.
Hamas may gain more monetarily from international largesse than from Iran.