I might be misunderstanding what you're trying to say, do you mean that because the previous generation had it worse we shouldn't strive to improve things even more?
No, what I mean is looking at the world from your standard, you won't have patience for things to play out. We definitely should improve things, but also we need to have patience for people to catch up. You can definitely help, but help also needs understanding. For example, the problem you are looking at may not be something of high priority to people need help. To understand what people really need will require more than compassion.
Helping people in developing countries and curing aging in not mutually exclusive the way I see it, they can be done in parallel. They also usually require very different skills and usually have different budgets for example.
I don't want to take resources away from helping the poor but rather see more focus in the medical world towards aging/longevity. Rather than spending a lot of money on trying to cure (for example) Alzheimer's decease I'd like to see more of those resources spent on trying to solve aging, which seems to be the root cause of Alzheimer's (and many other deceases.)
Does that make sense? Or maybe I misunderstood you again.