Only if you assume different cultures can't or shouldn't share knowledge and experiences. But of course, that's not true. It's is a fairly simple matter to assume that someone thinks differently from you.

I'm not talking about in-group/out-group thinking, but _generally applicable_ constraints on human behavior. Economics, psychology, science, etc. Things that can be optimized on _arbitrary_ cultures using techniques that are already known to succeed everywhere.

Rights do not fit into this picture. Rights are not based on measurable and general principles, but upon cultural expectations handed down through tradition.