Sure. So it's possible to focus on getting rich and then never give back. There's a solution to that, which is continuing to give a percentage of your income.
Some people are quite charitable and give 10%. I'm a little more selfish and give 1.5%, but this is already currently helping people.
Is it really pie in the sky idealism if (statistically) I've saved around 6 lives to far, (and helped many more). Still early in my career, and lots of time to go. I hope to cross 100 someday. But I started just as I graduated and have kept it up every year.
So I suppose the next question in my rebuttal would be to ask what alternative you suggest?