Although some of his feedbacks are crossedlines, we cannot say he has done no good.
So what?
Every person has done some good in their lives, but that doesn't give them the right to abuse anyone and act as a jerk.
Regarding the cow story, where I come from, a 10-year-old child can control 200 cows across towns without any of them leaving the queue; you only need a few strategies to do this, but no strategy is enough when it comes to humans.
I think we live in different worlds you and me.
Millions of people follow instructions from governments, experts and tv programming very easy, and they stay perfectly in line better than cows and sheep ever would.
Send any kid or grown man from city to control animals and he will lose them 100%, if they even know what real animals look like.
Anyway, this is way off-topic... I won't post in this topic anymore.