There seems to be little agreement on anything these days.
Excerpt from: https://www.webmd.com/heart-disease/guide/heart-disease-lower-cholesterol-risk#1
"...too much bad cholesterol over time causes atherosclerosis where the arteries become narrowed and blood flow to the heart muscle is slowed down or blocked. The blood carries oxygen to the heart, and if not enough blood and oxygen reach your heart, you may suffer chest pain. If the blood supply to a portion of the heart is completely cut off by a blockage, the result is a heart attack."
Re: Crestor study at - https://www.accessdata.fda.gov/drugsatfda_docs/label/2005/21366slr005lbl.pdf
Statins have side effects, which are documented in numerous studies and which affect some people more than other. What statins do well is reduce bad cholesterol.
As with any drug, the patient and his doctor need to discuss its benefits and risks. Ultimately, the patient needs to make an informed decision and decide what's best for him.
Web MD isn’t a website for cutting edge information on drugs or diet. They parrot the government line.
The Crestor study is really flawed. The doctors involved all had a financial interest in doing the study, and the numbers in the results were massaged and tweaked until they were bruised.