It depends, of course, on genetics.
Some people handle cholesterol and fats brilliantly.
Their liver is set up, so to speak, so that they don't make too much cholesterol and they can eat just about anything that they want. Some may have a metabolism that's different. These are all important in helping them remain free of heart disease. It's pretty much predetermined in these people who do nothing consciously for their health and still seem fine. They have been blessed with great genetic equipment.