"Isn't the most obvious difference, that Libya has oil?"

Which Libya sold to the countries of Western Europe, his main customers were Italy, Germany & France. Are you saying that NATO schemed away to attack Libya to "steal" Libyan oil in the same way as people claimed that Iraq was all about the USA "stealing" Iraq's oil? We all know that the latter most certainly did not happen, and at the end of all this I would predict that Italy, Germany & France will still buy their oil and gas from Libya and pay market price for it (Same as the US does for what token amounts of oil it buys from Iraq).