I think that's a very fair assumption; step changes such as refraining from cannibalism, trial by ordeal and burning witches probably won't occur so frequently in the future!
Although, thinking about it, perhaps that's a judgement clouded by my perspective at this point in time. Perhaps in 50...
I think you'll find it's part of a continuing process of human development that's been going on for countless millenia.
I'm sure that in 50 years time many things that are condoned today by our leaders and accepted by the general populace will be considered savage.