Fortunately, Hezbollah doesn't have much of a population and economic base to draw from (maybe 1.5 to 2.0 million people, most of them poor), and only about $100 million per year in chump change from Iran.
By the way, Bush's idea of using Israel as America's proxy in our struggle with Iran is a lot like our attempt to use Israel's old ally, apartheid South Africa, as our proxy to fight the Soviet Union's proxy, Cuba, in African countries like Angola in the 1970s. Militarily, it made a lot of sense, but politically it was so disastrous that it didn't work. Was it fair that everybody around the world was so prejudiced against the Boer State? No, but, then, life isn't fair.