Eh, not sure where to start since judging by your past post, you're a ends justify the means sort of person. Posing as a refugee center for more test subjects? Sure no problem. Putting Reaper tech into your followers turning them into obedient drones? Sure! Attacking the Citadel killing people who aren't apart of your ideology? Sounds great. Future generations of humans will surely thank us for our actions.
I am indeed a firm believer in Exitus Acta Probat.
I daresay that the type of people are generally more... excellent.
But yes, posing as a refugee center for more test subjects. It's great: it eliminates excessive population that isn't contributing to the war effort and taking away resources from those who are, while denying their utility by the Reapers for their own ends, and also supplying you with substantial research via their death, and shock troopers that are recognized as effective forces for your war effort. That's actually rather practical.
Yes, turning your followers into obedient drones; it works. They don't question orders or authority. They enforce your power and establishment. If you have even the slightest authoritative notions, that's a good thing.
And yes, attacking and enacting a coup that is successful is great if you want to establish a power base.
I don't care how humanity views it. What matters is that we're at the top, ascended, and dominant.