Capitalism is the only system we have the capacity to currently implement which allows freedom.
Only for the upper class.
And until we reach a stage where all life-sustaining jobs are handled by automatons (Well except for perhaps medical professions.), that will remain the case.
Actually thats why there's Socialism. Oh and a little reminder before you tell me "Socialism doesnt work". Sweden, Norway and Switzerland are concidered to be one of the best countries to live in. Free health care , free Education and a very low unemployment rate. And guess what they live under?