So you think "insider" trading is cheating? Another poster said it best. Any time two people trade anything, one person has more knowledge than the other.
That used car that you think is a "steal"? The owner knows the transmission is about to go. Does he tell you? The house that is up for sale at a much lower price than other comparable houses. The owner knows an oil refinery is going in a few miles away and will stink up the neighborhood. Should he tell you? Insider trading laws are stupid. When government criminalizes knowledge, they have become dictators and thought-police.