Well, in this case, conditions like that can still happen, but on the other hand, talking about looking for opportunities beforehand, I might focus on this because of course we also have to be aware that I won't mention that it was luck, but the result of the hard work that he had previously built.
You said that your brother has a high spirit of hard work and when he gets a big project and succeeds there it is not luck but the result he has learned from previous hard work.
I was often told by my parents "what you plant is what you pick" in this case I actually think that is what was meant. when you are lazy then indeed success will not come by itself, even though it may exist but the ratio is very small and it can only be counted on fingers. but it's different from us looking for and taking advantage of all the momentum with continuous effort, so indirectly we go straight to the success that comes our way.
......And sometimes what you might plant might not even get picked in the end and it just goes -poof- gone. Same goes for some other people's dreams that they dreamed the most. You just gotta suck it up that everything will not always go your way.
Your race, your birth place, your luck overall will affect on the probability of you getting what you wanted. It's just the broken reality there, bud. I can recall some seniors in my workplace being praised while just sitting their ass off without doing anything for 9 hours almost.
It is one of the other possibilities but in this case when talking about success there must be a lot of obstacles there regardless of anything something like that will definitely happen because indeed when we do everything other than there are obstacles in the process there will definitely be competitors so in this is as much as possible relationships are also needed and I think when the performance we do is good regardless of cheating or not in the end I don't think it will betray the results to be obtained.
When you talk about race or whatever it is that is related to discrimination you should be aware of the environment because of course walking in an unhealthy environment then we will not be healthy forever, right? When your performance is good then the relationship will exist and the choice is yours. You work with people who do nothing and get praised. You have to see whether your environment is healthy or not because in such conditions you also have to rack your brains to survive.