Manipulation is done all the time. The media, your boss, school system and the government all have their hand in pointing you in the direction they want you to go rather than where you want to go.
"Why was God able to create the universe in only seven days? Because he didn't have an installed base to deal with."
'Evil' depends on what's your interpretation of evil. If a double agent is sent into a terrorist organization and does a little manipulation I can hardly see that as being evil.
It is evil and should never be done unless you are out to save the world but most times people do this for selfish reasons.
I think manipulation is the common thread of every abuse and every crime. It is hard to always be 100% honest about your motives 100% of the time, as well as 100% respectful of the decision-making rights of others 100% of the time. But I think the more we do that in our personal lives, and the more we encourage it in our leaders, the more we'll be the society we wish we were.
If we are manipulating people to get what we want then it means we have no reserves about what we will do for ourselves. Ethically, people should make a conscious choice in their interactions with you. They should not be tricked.
A pause from Is Manipulating Someone An Evil Practice? to share learning from the past:
Today is: 19th September (GMT), in history on the 19th of September, 1950 AD the following birth happened:
Rudy Ramos: Lawton, Oklahoma -- Actor (Wind-High Chaparral)