[tzone]

In case of human rights, what would more advanced mean other than one that is more fair to all humans of a particular society or country?

More advanced human rights just simply means more fair human rights, it has nothing to do with chronology or recency. There are plenty of examples of countries that had more advanced human rights in the past and regressed and made things worse over time.

Easy example: Russia had much better human rights for LGBT community not so long ago, however, it has regressed and gotten much worse over last 10-15 years.

[liamdgray]

If you mean better, why not just say better? Using the word advanced implies that "progress" is monotonic, but you just gave an example of how it isn't. Some regressions may have seemed like advances at the time. We should probably just refer to "changes."