I don't think that's likely, because human values came into existence because of the evolved goal of reproductive fitness in an environment of natural selection. LLMs are trained to imitate human language, not to have many descendants. They could well "understand" human language (in whatever meaning you choose to interpret that), but that doesn't mean that imitating human values is the mechanism by which they will do so. The success of current LLMs suggests that there's a much simpler way to do it.