Mark Zuckerberg and Facebook can be separated.
In fact, if you say Facebook, Zuckerberg comes to mind and vice versa.
However, some people believe that Facebook is not Zuckerberg and are going to court to prove their point.
It is not uncommon to have someone serve as both CEO and Chairperson for companies.
Amazon, IBM, Tesla, and Netflix to name a few have one person for both positions.
source: www.techworm.net