Yep. My gut reaction to the phrase "eigenmorality" is to immediately turn around and ask "have you ever seen an eigenface?" (see: https://www.google.com/search?q=eigenface&tbm=isch )

They are a certainly a mathematically accurate way to represent a distribution of human faces, but no one would ever confuse it with an actual human face.

And this is one way i view political/policy compromises (which is ultimately where the rubber hits the road regarding morality/ethics). One example is middle ground positions on immigration reform: http://www.vox.com/2014/6/12/5803912/americans-either-want-u...

There are circumstances where opinions fall into a multimodal distribution, and in those situations, taking a policy position that is the global average not only will piss everyone off, but won't necessarily fix the policy problem at hand.