I would love to see a TV show based on Newton's life. What an interesting yet irascible man! Clearly morally flawed and power hungry in his later years, but yet one of the greatest geniuses to ever live. I didn't know about his later years and how he became power hungry!
Mercury poisoning might be behind his erratic behaviour towards the end of his life- after all it's known to cause mental disturbances and mood swings.