Definitely not, but it all goes back to the definition of "bad."
Is stealing food for a hungry child bad? What is the extent to which a person can be defined as bad? Are we right to even judge and deem someone as bad?
Psychopaths are people who are forced to be that way or choose to be that way because of, well, life. Sure, some psychopaths are manipulative and tend to lie, but does that truly make them a "bad" person? Who are we to say that they are bad, or if they are even psychopaths?
If we classify bad as the action and not the reason, sure, some psychopaths are bad. In other words, suppose someone was (hypothetically) abused by a loved one, and in order to combat the hurt and abuse, they lost empathy, became more egotistical, and perhaps towards the personality disorder of a psychopath. Let's say, one day, they started abusing others and manipulating others. Does this make them bad? Some might say yes because they are after all manipulating others, but it may just be a way to protecting themselves, and the same occurs vice versa.
It becomes a question of whether lying, disregarding others, and manipulating others is considered bad. In our daily life, what is something that isn't manipulated? When we apply for jobs, isn't is competing with others? Which one of us did not include something considered bad we did before, whether how small or big. It could be a fight in the school cafeteria, something we said to another when we were just a child, or just anything. Is this not manipulation and lying by omission? Additionally, just become someone lost the ability to empathize, it does not mean they are necessarily bad either.
Whether it is true or not, it is important to remember not to judge a whole group of people by just a single person. Perhaps a psychopath murdered someone, but we can't say another is also bad. These judgements are just as bad as those racist and sexist comments. Even those who are not psychopaths are able to do bad things.
I suppose I included too many questions to respond to a question, so I will include one more statement to answer the question. Psychopaths are not necessarily bad people.