No, actually it had quite an impact. It very nearly destroyed our airline industry. If you remember there were some very large mergers of the airlines as a result in order for them to simply survive the aftermath. Tens of thousands of jobs were impacted not mention the loss of weatlh. So, your wrong there.
There was very large financial impact as well. Up until 9/11, many companies, financial insitutions, banks, etc. did not have disaster recovery procedures in place, i.e. a backup. Tons of financial transactions were lost when the towers came down. The solution to the lost records was basically a do over of September 10th, a very similar scenario to what happened in Tom Clancy's book Debt of Honor; it was Jack Ryan's idea. So again, your wrong there.
If you need examples of entrepreneurship then you are economically retarded. Just look around john. It's happening all around you. I could give you 5 million examples.
The housing bubble was the catalyst to the financial collapse. The housing bubble was mainly the brainchild of Barney Frank and Chris Dodd. If you want to put someone in prison over it, then send them.