Could you agree/disagree and add more information regarding the below statement?

"I believe investment banks can be a very powerful tool in helping create wealth while also stabilizing the economy through an increase of efficiency in financial development, as well as the promotion of business growth. With this being said, after the financial crisis back in 2008 and 2009, the public has become more critical of investment banks as a result. This calls attention to the need for regulation within this sector of banking and finance overall. Regulation is not black and white, which makes it tricky to say how much regulation is needed to oversee investment banks and make sure scandals like those in 2008 do not happen again. However, too much regulation creates other challenges such as an increase in the cost of doing business. Overall, I believe the key to investment banking is balance."