Is it possible for us to be ethical without passing moral judgements?

I am aware that many discussions around ethical business practices seem to revolve around what is “right” and “wrong”. Often this is seen from one particular cultural perspective. This sense of right and wrong can easily become the imposition of one culture's value systems onto another.

Whereby, after all, to say spitting in public is right or wrong in a given society? Should one sniff and swallow? Or blow and pocket?

Maybe it depends on where one is!

If one culture sees it fit to allow what I would call “the exploitation of workers”, should I simply (or perhaps simplistically?) shun and condemn that culture? Or should I reframe my view and see that as the (hopefully temporary) creation of mass employment opportunities appropriate to the current state of that culture? Is this arrogance versus tolerance?