One way to address Bill Gates with respect would be to simply write Sir, but I don't want other readers to get confused about who I'm referring to. How do I refer to him with respect without creating any confusion? Another way I thought of is to just use "Mr. Gates", which is appropriate and it doesn't even create confusion. But what if I do really want to make use of "Sir" if I feel this conveys more respect? What would be correct, Sir Bill or Sir William?
Also, I want to know if my idea that "Sir" conveys more respect is really correct or if it is just my misconception and I'd sound like someone who doesn't know English well and doesn't know the proper usage of "Sir" ? Others on the blog are simply referring to and addressing him by writing Bill or Bill Gates but I don't want to copy others if they're not using proper etiquette.