I suppose folks from India and China make up the bulk of the applicants, and a high percentage of the people who end up getting the visas.
My life could have been completely different if I did get an H-1B. Oh for the path not taken.
I hope there is someone who received it in my stead, who now is wonderfully happy and successful in the US.
Is it fair? Not really. Most people lose. I also lost. But, such is the reality we live in.
Some people don't want anybody to come in, others want just the brain drain but nobody else, others want cheap unskilled workers, others want open borders. And this is just a small sample.
1. We want to do brain drain to remain a leader in science and technology.
2. We don't want immigration and we don't like immigrants.
3. We can't discriminate based on where you come from, that's racist.
There could be a better solution for reaching these goals, you could switch priorities, cancel H1B altogether, or lift the cap, or have stricter requirements, or separate caps per country of origin, or per sector, there are a lot of options.
From my point of view, it's all still a lottery.