From the Buddhist point of view, the life of the rich is more important than the life of the poor because the rich can donate money, so the life of the poor is not important?

That's not true. Although the poor can't donate money, they can give their strength and smile. Giving with internal money is more meritorious than giving with external money. As long as you treat others sincerely, be kind, honestly recite the Buddha, and live in the pure land, you can go to the paradise and get the greatest merit in the future. Never do whatever you want.