You can ask that question here. That is not quantitative finance question for sure, and it would fall under economics.
However, you should make it more specific. Difference between CEO and doctor pay in which country and what year? Also, by doctor you mean medical doctors or PhD?
Lastly, if you want your question to be well received by the community you should show us some prior research/trying to find answer on your own (questions that can be answered with quick google search are usually received poorly and attract negative reactions/downvotes).
As you find in our help center (I recommend looking at the other advice there as well) the first advice for asking good questions is:
Search, and research: Have you thoroughly searched for an answer before asking your question? Sharing your research helps everyone. Tell us what you found and why it didn’t meet your needs. This demonstrates that you’ve taken the time to try to help yourself, it saves us from reiterating obvious answers, and above all, it helps you get a more specific and relevant answer!