So what? Banking pays more because it is higher skilled job than other jobs. There should be no argument with that... Some bankers work 20 hour days, 7 days a week. Can you do that? If you did, do you expect to be rewarded financially?
I agree regulation was poor, but again nice hindsight... Not many people expected that all these poor people won't pay back (I guess a lot of these people do not have the work ethic to be able to earn what they owe by getting a job etc). The banks model had assumptions, one of them was regarding the correlation of defaults. That assumption was wrong. Plus the markets made it worse by making liquidity of lending dry up (e.g. by short selling banks - reduces the confidence in banks) - now the frozen liquidity has passed onto other industries which is why they need bailing out.