Why don't you do this? If you don't have resources for this, why do you think other people have them? Ask yourself honestly, if you won a lottery yesterday, would you give it away to those workers in underdeveloped countries? I would not, because I'm too greedy, but I don't think you would really give money away either, and I supported Ukraine with about $100, which is probably the biggest donation I have done in my life, many people could live on it for two weeks where I live. Many options are available, but not all of them are as good as just giving them jobs. And if you wanted to give them better paying jobs - who will pay? Would you pay more for some laptop because it supported some unknown person on the other side of earth? Why don't you just send them some money today? You have that option after all.
Putting aside the fact that I do try to help people out financially where I can - this is just a deflection from reform. We ended slavery because it was immoral, and I'm sure there were people saying "if you love slaves so much, why don't you buy slaves and free them yourself" at the time. While it's possible to do that on an individual basis, that doesn't lead to the end of slavery, which itself should not exist at all. Neither should exploitation of poor countries by rich ones. I'm sure you realise that this is bad.
Of course, I'm whole heartedly with you in that matter, I don't think many people here would be against such cause. I wish people in underdeveloped countries earned at least as much as I do. I just would like to see that "many options" you talk about. Typically people who claim that "someone should do something about this" are just publicly grouching and I just don't like that. Either give some substantial way to achieve your goal, or don't comment. You are adding noise to noise/signal ratio.
The "many options" I'm talking about are otherwise known as "left-wing politics". Unionisation, building a cooperative-based economy, UBI (though for some reason this has right-wing support too), minimum wages, nationalising important industries and resources, building systems of mutual aid, honestly I could go on for a while. Equality versus hierarchy is what the left-right political struggle is about, after all.