Opinion
No, not always. For instance, it used to be against the law for people to harbor fugitive slaves seeking freedom.
Fortunately, many people broke this law.
Opinion
This really depends on two factors: How infallible you perceive the law to be, and whether or not you believe that moral law is different than written law.
As pointed out above, if you believe that moral law is different (or is at least different in some cases) and that moral law superceedes the written law, then no: Illegal things are not always incorrect.
However, if you believe in the infallibility of law, or that the written law superceedes moral law, than yes: every illegal action is always incorrect.
It is probably illegal to provide incorrect information.
No, they are always incorrect.
Yes, it is a violation.
many different things but basics are incorrect air incorrect fuel or incorrect fire
Incorrect
Yes, it is incorrect. Even though the pronoun "you" can be singular or plural, it is ALWAYS used with a plural verb! The verb "was" is singular, so that is incorrect.
Pecuniary
It was always illegal.
They have always been illegal
There is always some risk involved in doing anything that is illegal, and if there is no profit motive, people have no reason to take the risk of selling things in an illegal secondary market, they'll limit themselves to the legal primary market.
No. But it is illegal for all the other things.
Pecuniary