Do you think Macbeth would have changed if the witches had not appeared

Answer: yes, Macbeth would have changed.

Explanation:

just not the way you think, his character would have developed, but even as a true person, Macbeth would have changed, he would have been given choices, and it seems that his wife was rather power hungry at first as well, i don't think he would have ended up as king, but I do firmly hold that his character would have changed, be it for worse or better, that parts up to you