Capitalism is not the "most moral" system. It is more just than socialism and, indeed, incorporates many moral aspects: private property, private wealth, a free market.
To be truly moral, however, it must be tempered by a moral society unwilling to allow the purely materialistic capitalist system either to inform (or stunt) their consciences and values to the purely materialist OR to let capitalism's two fatal flaws -- rabid individualism and centralization -- run amok.
We have failed on all counts.
Given that we are now perhaps irredeemably stunted into confusing capitalism with freedom/demokracy and boxed into the purely material, it's quite doubtful we've the ammo or the spine to break the shackles now being fitted by formidable combination that is Banker & Proletariat.