When you solve a problem it either benefits the rich or the poor. Job creation benefits the poor more than the rich. However when the government gives people like Elon Musk the permission to build a gigantic Tesla Battery manufacturing factory in Texas, it benefits the rich because they would buy more shares in the company, making it more profitable, also he doesn't get to pay taxes. It also benefits the poor because of massive job creation.
Lastly, the problem of the poor soon becomes that of the rich if it is not solved.
Is just that without the poor the rich can't completely achieve their goal, because if you look at it this way like you said there would be massive job creation. With that you don't expect the rich after buying shares they should still be the ones to engage in both the laboring department, no. That's why I said without the poor the rich finds it hard to get to their goal.
We should always have it at the back of our minds that the rich and the poor both are interdependent of each other, in an economy, everyone cannot be rich and also not everyone will be poor as well, this has always been and will remain forever because we all cannot reason exist in the same category, but live renders us opportunities to have a chance of changing from one class to another, the poor are aiming to get rich while the rich are doing what it takes to make wealth, the whole summary now is if the poor is not doing what will make him rich, he may never get wealth, if the rich does it maintain a practice to sustain his wealth, he will become poor, those that have witnessed the two can explain better.