One of the most difficult things everyone has to learn is that for your entire life you must keep fighting and adjusting if you hope to survive. No matter who you are or what your position is you must keep fighting for whatever it is you desire to achieve.
Yes, prudently invested contributions to the Social Security fund may bring greater dividends, but those contributions would also face a greater risk. It would be like gambling. We should not gamble with the investments and the future of the citizens of this land.
In modern pharmacology it's so clear that even if you have a fixed dose of a drug, the individuals respond very differently to one and the same dose.

