The fact that "make the sacrifices necessary" is a useful attitude for you does not mean the cost-benefit/risk structure is actually adequate for everyone else.
Not at all. I'm referring to many people in the First World.
There's also the structural issue: not everyone can be an entrepreneur, because companies need worker bees to run. You can't run such a strongly hierarchical system as capitalism without some level of social-democratic concessions to enforce that, outside the workplace, my boss and I really are equal human beings.