How so ObadiahtheSlim?
Cameron was not critical of Bush's foray into Iraq . While Sarkozy opposed the invasion of Iraq, there are indications that he did so because of the public opinion in france at the time (only speculations from my side - no hard evidence).
His foreign minister was proponent of the invasion.
Or did you had someone else in mind?
Particularly after Libya gave up their nuclear program and started playing ball with the West. Sorta sends a bad message to N. Korea wanna be's like Iran.
Honestly, IMHO, I think that the military operation in the Libya has very much to do with the fear of the mainly french and somewhat british politicians that their countries will be sidelined totally in the middle east and NA.
Also remember that those two countries sided with rebels well before the tide turned against rebels. Once it looked like the rebels were going to be defeated, the french and british spearheaded the efforts to establish the no-fly zone (which has now expanded into air-support mission for the rebels)
In other words I don't think the reasons are 100% altruistic but I don't think that the Libyan operation is a result from a 100% rational, well thought out strategy either.