Investment banking is a form of capitalism yes. They ability to be involved in investment banking is a right dictated by are free market.

No.

Investment banking doesn't have to be part of core banking and/or minimal banking services.

Investment banking is essentially a very different type of banking, it is not the same as retail, commercial or trade banking (which would constitute as core banking).

Investment Banking Center was created in 2003.

In investment banking, TMT generally stands for the Technology, Media and Telecommunications sector.

There are lots of things to consider in investment banking and it can be found out in detail from the link given below.