It's more complicated than that. I know them. They're not evil or cruel. They're not even smart. Hurting them, it's like hurting children.
We were not always 70, or rather our 70 is an accumulation of all the other ways we were. Our 5-year-old selves became our 10-year-old selves, and so on and on; and if we unpack our selves, the full album appears. Every moment is a part of the following moment, and we are all a continuum.