Is a free society guided by a philosophy which encourages self-improvement is the only path to social greatness?
If you limit autonomy through law,do you simply keep people away from the natural consequences of their actions?
Doing so,will it allow the weakest of our society to last longer than they should and slows the growth of the strongest who would learn faster being free?
In my view laws, historically, were not merely the products of the "weak", nor did they or do they serve the weak in all instances. In fact, we have countless of generations of disenfranchised people that were kept down by laws. These unjust laws were enacted by those with military might, but lacked the wisdom and intelligence to create a system that increased the mutual share.
Philosophies that eradicate the "weak" simply give privilege to certain characteristics over others. In any case, by culling a certain population all you do is create a new mediocrity with a new average. I am all for self-improvement and I do see philosophy as a way to rigorously re-evaluate our assumptions; however, it is a deep and perverse assumption that this requires leaving people behind.
That was the logic of evangelical Christians, doomsayers, and prophets from time immemorial. Christians may have had that slogan of the "meek shall inherent the Earth," but what they meant was people who subscribe to our ludicrous dogma will inherent the Earth. Substitute Abrahamic tradition with a neo-social Darwinian ethos, and then we're back to the original question...