Yes, provided the writer has access to the person's genuine knowledge, experience and perspective.
The ghostwriter can help identify ideas, ask questions, conduct supporting research, challenge assumptions and turn a rough thought into a clear argument.
What they should not do is simply invent a collection of opinions and place an executive's name above them.
This is why conversations are so valuable in thought leadership work.
An executive may casually mention an observation from ten years in their industry without recognising that it could become an excellent article or post. A good writer notices those moments and knows how to develop them.
The writing may come from the ghostwriter.
The thinking still needs to have a genuine connection to the person publishing it.