It's not really hypocrisy though, it's the presence of ulterior motives. There is still a humanitarian aspect that must be there, and whilst it's still framed as being the key objective, so must it be for anything it sets a precedent for.
Assuming it is setting a precedent of hypocrisy is assuming that there is something hypocritical about having an ulterior motive. There isn't. NATO says 'we are doing this for humanitarian reasons', and even if you're pretty cynical that's at least partially true. Most of the "they're doing it for oil" objection (that I haven't seen a convincing argument for, but have seen convincing arguments against) is in the vein of "why not Syria?" But NATO benefitting more out of hitting Libya than Syria is independent of any humanitarian benefit that intervention provides, and the 'hypocrisy' that would come into it is if NATO itself was perpetrating human rights abuses (and whilst there have certainly been some ugly things on the rebel side here, I don't buy into the argument that NATO is an equal menace to Gaddafi). As much as I'd prefer motives to be as pure as possible, so long as a necessary humanitarian objective is being pursued, how is the benefit the intervenor receives relevant? If Rwanda had oil (maybe it does, IDK), I wouldn't suddenly think it less worthy of intervention, for instance.
I think Libya sets a fantastic precedent, personally, when you contrast it to, say, Iraq (and this clear contrast is why claims that they're the same are pretty absurd).