As someone who has spent a lot of time in various cultures, it's pretty much impossible to define a universal set of shared values across all cultures. I grew up in subculture that valued intellectual freedom and questioning everything. But we had certain things that we often said were universally wrong (sin) in all cultures, like murder and rape. On the surface this seems true. But then you start asking how something like murder is defined and you realize that cultures do not share specific ideas about this. Some say things like euthanasia and abortion are murder, others say that they're not. Some cultures say all information should be free, other cultures say you should censor information about things like building bombs, or making your own medicine or repairing your own devices. There is no universally agreed on standard that won't offend some culture somewhere.