I think people blatantly lie and objectify all the time with no social sanction.

Yes, these are both examples where the social norm is more lax than what people tend to say. Advocating certain kinds of stricter ethical standards than are actually enforced is mainly social signalling of the sort that Robin Hanson likes to discuss.

As a side note, one of the common "geek" social failings is to take stated ethical standards at face value, especially with regard to lying.

I'm not sure what you're getting at otherwise. As I've stated elsewhere, objectifying people in economic contexts is socially permitted (except in extreme cases), while objectifying in "social peer" contexts is of borderline status, depending on (class/region/&c.) fluctuations in norms.