Except if you actually lived in Russia in the 80-90's moved to the west, saw the life here and look where putler is going towards with his so called "rule of law", you would actually understand why it matters to stop that idiot. Out of the two clearly both evil, self serving entities of Nato or Russia, I know under which I would much rather live, even if neither is perfect.
Corruption happens everywhere, look at a UK, scandal after scandal, after scandal, do those involved in scandals resign? You wish they did, no those cocks cling on to power like a bad std. Only recently we had a string of relatively high profile resignation which had to be forced.
Sorry ranted on, but really the problem is that putlers regime is actually evil, Ukranians are dying to protect the rest of Europe from them. So paying for sending weapons to them is the least that I think I can personally do. For America it is better to stop putler before he attacks a Nato country and you would have to send your soldiers on the ground here.
(By the way, I agree with your Iraq statement, it was always about resources, and so is this war for putler, just look where "conveniently" gas deposits were found in 2012....)