Material reason for the 2003 invasion of Iraq?

I am aware that a few years before the invasion, Iraq started selling oil in Euros instead of dollars, and I understand that the preservation of the petrodollar was a reason for the destruction of Libya. Also, there must have been a reason to go to war with Iraq the first time in 1990 and to then wage economic warfare against Iraq.

I've heard some stuff about the war being really against Iran, but that doesn't really make much sense because Iraq under Saddam Hussein was a counterweight against Iran in the region (and in fact the imperialists sponsored an Iraqi invasion of Iran during the 1980s).

Of course, the WMD lie and attempts to link the Iraqi government of the time to al-Qaeda (which seems to just be an imperialist asset anyway) and 9/11 was just a way to find an excuse for the invasion.

The weapons manufacturers, private military corporations, and many other corporations profited greatly from the war, but there must have been a reason that Iraq specifically was targeted.