The accurate synthesis of the impact of diverse government structures on society and human rights based on the provided text is:
Government structures that offer strong protections for human rights create stronger social institutions and more freedom in society, whereas government structures that offer weak protections for human rights create unequal societies.
This response highlights the correlation between government structures that respect and protect human rights and the overall health and freedom of society, contrasting it with the implications of weaker protections for human rights.