Operation Allied Force is NOT about the defence or furthering of self-interests. It is about conflicting cultures. The West's definition of a legitimate regime is very peculiar and not very rigorous logically. Khomeini came to power on the crest of a wave of unprecedented popular support and he supplanted a cruel and corrupt dictator. Milosevic was freely elected by a majority wider than Clinton's.
Human rights are an alien concept in Africa and the Balkans.
Competition is a value derided in most parts of the world. Privacy is less respected in the USA than in France. Western values are not universal even in the West. The nations and societies of the Balkans are used to solving their problems by employing ethnic cleansing, armed brutality, suppression of civilian population and decimation of the elites of the enemy. This is not a value judgement.