Should I know RE development in-depth to have an empire?

[Ivan A.]

Do I need to know the technicals around construction in order to have a real estate empire or do you think focusing on the business side & delegating the technicals is sufficient?

I'm conflicted because 2 millionaires have given me advice to focus on 1 sole aspect of my business, and what draws my heart right now is flipping and I currently love it. But when I look at my 5 year outcome, I see myself as an investor of many different businesses managing top shelf individuals as I love seeing people grow more than houses grow. People's transformation gratifies me a lot more I think.

So now I'm stuck on if I'm going to focus on an a real estate business that scales, do I need to get all these educational courses that will show me commercial planning/management/technical (ie: developer/builder) skills or focus in on a higher level?

Looking forward to your advice,
Ivan