Human nature makes that impossible. Modern society only exacerbates the inherent problems of human nature even more. It's only been in the past 100-150 years of the thousands of years that some people have started mildly giving a fuck about things like "human rights" and "humane treatment." Even so, torture and suffering is endured by people on a widespread scale everyday, and despite many of these causes of suffering being well known and preventable, little to nothing is ever done to stop it. Yeah this is probably the "best" time period for the largest amount of people depending on how you look at it since cavemen days, but that's really not saying much.
I think the wider society should strive toward making improvements towards quality of life, being more compassionate and rational, but that's not likely to happen while corrupt, psychopathic, and authortarian figures are the dominant forces in civilization, which can never and will never be completely avoided. Those who are the least suited to power are the ones most likely to seek it out.