I wouldn't want to be one of them, tbh. This world of criminals is better to be avoided. We all know that in gambling the higher the stakes the more risk is involved. But in a fair game what you are risking is your money, while if you are "close to the Kitchen", as you put it, you are risking your health, your freedom, and even your very life. Regardless of the potential profit, it's not worth it.
People most of the time do not think things through, there are only two ways to fix matches with money or with threats, and the kind of person that can use either one of those methods is probably someone you do not want to be around as it is obvious they have no moral compass and can do whatever is necessary to get what they want, so when you think about it in this way we see that it is not worth to try to become part of those circles that can fix matches.
You'll find yourself being victimized if you chased for this kind of people.
They can easily change the turn off events with money and influenced those people are very capable of manipulating the outcome,
either you'll be lucky to take some portion if fixed match went according to how you bought it or you may suffered with a great loss if the outcome
Turns against you. Fixed match can always be fix you don't have any clear direction and you don't have any idea if you are dealing with the right person behind.