If people really think of founding enterprises as a gamble with potential infinite reward, but limited downside (as bankrupcy will take care of it), I would say our economy has a problem...
It's this that makes entrepreneurship more abundant in the first place. If you have an economy with no risk taking you have no growth and no dynamism. Sure, 80-90% of businesses will fail, it's essential that people can fail without too much personal risk after all, but the 1 in 100 businesses that go onto grow to employ hundreds or thousands thanks to an effective business model are more than enough to make up for the failures. When someone fails in a startup it's not like they drop out of the economy altogether. Its not like they learned nothing. They go on to become effective employees at other companies, producing value there.
Why? Limited downside does not mean small, it just means limited. It can perfectly destroy a person's finances if they invest all their lifesavings in it. And the reward for a company is normally a % of how much value they provide to their customers (yes, I know, not always, but generally that's true). Unbounded does not mean infinite.
