You seem to be emphasizing that european energy 'independence' is the only reason for the pipeline without noting as a result, it also shifts significant funding bases for all the producing nations involved and therefore also shifts the geopolitical balance of power viz-a-vis state finance, and that the orientation of major producing nations has direct bearing on the global balance of power / energy / finance. See also: BRICS

You also presume that the short-term interests of politicians is not heavily tied to the long term interests of their major constituents.. See also: think tanks

As for brutality: Try to create a 'peaceful and inclusive' society when a significant enough minority to overthrow a weaker regime is always present and agitating to do so (e.g. jihadi sympathizers).. it might be more difficult than you imagine, which is not to say that conflict never exacerbates extreme positions. You might find that some normal people would prefer a harsh regieme keeping those people out than a week democracy which they expect will likely fail (see also: egypt)