In any case, insider information alone is not enough if it is not accompanied by wise action and decision making. Well, in the world of investment, sometimes practical experience and understanding of market situations can be much better. For those who are educated in such understanding, it is more practical and skillful in dealing with market situations to make money.
doesn't matter how skillful you're if somebody got insider info and know there's something that's about to go down, then you can easily outsmart all the skillful traders.
what's essential in trading or investing is the information, you can analyze the market all you want but at the end of the day, ultimately, insider info gives obvious clue what's the direction the market gonna be taking.