Is it wrong to teach people how to manipulate others?

The information is out there. Someone is going to learn how to sway the minds of others, for good or bad.

Isn’t it irresponsible to keep this information from those who it might be used against?

For instance, some people were outraged over Robert Greene’s book, The 48 Laws of Power. In it, he uses historical examples to teach the reader lessons about gaining and maintaining power.

But much like Machiavelli’s The Prince, the book did not make judgment calls about whether using these tactics was right or wrong. It simply laid it out: here is what has worked for people looking for power, and here is where they failed.