That investment shop will have every banker arguing that they deserve a gigantic compensation package. Add's a lot of overhead that you won't have starting out.
Accounting: Like most professional services the web has revolutionized accounting. You can now trivially have your accounting done anywhere in the world. How about you start your own shop by hiring and managing overseas workers? Or how about a cadre of accountants based in a low cost area of the US? Since 1995 other industries have been transformed by technology MORE than the tech sector. Netflix/iPod/Kindle anyone?
You've got me on pharmaceuticals, but it seems that regulation is the key here. I doubt communism would help with that.