You're talking about managing risk - and that is actually something that capitalism does better than any other system, via Insurance or the markets.
Capitalism encourages the creation of mechanisms that allow risk to be transferred to those who are best able to handle it. Overall, it reduces the costs associated with such risk.
For example, if you are a farmer, you can purchase a contract for next season's crop at a set price. The commodity market takes the risks related to pricing away from the producer.
Any condition that involves risk is actually an opportunity for some entity to step in and calculate (using actuarial tables, etc) the value of that risk.
Hypothetically, if a couple wants to transfer the risk of their newborn having a serious medical condition, that presents an oppty to an insurance provider, who can assess the risk statistically. The couple would be able to transfer the financial part of that risk to an insurers. The insurance company in turn, might sell that risk to a re-insurance company if they feel that their exposure to a particular situation is too high.
These methods sound impersonal and lack the 'feel-good' sentimentality that other, more compassionate systems might claim. In most other systems, you would be told to adopt a fatalistic attitude towards such risk.
No doubt there are examples of failure as you have quoted - Enron, pension funds. Those cases are anomalous, but do exist. No system is completely devoid of risk.
However, in a macro sense, the system works - and that is why the Enrons are noteworthy. If such failures were commonplace, they wouldn't make the news!
Without making a big deal about compassion, capitalism actually cares for the poor - by reducing their numbers! Most other systems that claim to be compassionate are responsible for the creation of a larger than necessary class of poor people.
You may want to check the facts about the S&L debacle. The single largest contributor was the existence of the FDIC. In simple terms, it lowered the bar for entities to engage in mortgage loans etc with the backing of the Fed.
For a more educated & fair analysis of the S&L crisis, check out:
http://www.cato.org/pubs/regulation/regv15n3/reg15n3-england.htmlThis article does assign a significant responsibility to Reagan era policies, but it goes into further detail, describing the prevailing conditions much better than I ever could ..