I graduated with a second class lower degree in chemical engineering. I'm considering to go for an MBA instead of a chemical engineering-related masters but I need more information and advice from experienced people.

Please, who should go for an MBA and why would one need an MBA?

I have my little freelancing business and my dream is to someday expand it and make it a company. Do I necessarily need an MBA to run my business?

Is an MBA a viable option for someone that is looking to switch career from engineering?