Good question, which bankers do you mean?
Things have changed. In banks there is much stricter regulation coming into force, demands from regulators and shareholders for greater recapitalisation of balance sheets, more accountability, more scrutiny on risk and compliance and actually less reward for more work (no violins necessary) if you ask many of the bankers you seem to be talking about. You just don't hear it because it doesn't make good news but believe me, Financial Institutions are spending a fortune on it, as well they should be.
As for reward leading to abuse, our society is based on the principle that people should be rewarded for success and in corporate terms, this means making money and consequently generating the growth which the economy depends on. I agree, this shouldn't be open to abuse but we shouldn't lose sight of what really matters which is actually risk v reward.
Everyone was bailed out in the financial crisis, but it was the system which was at fault. We all have lessons to learn from it IMHO but changes are happening.