RandomPersonBlowsUp

I understand that joining a sports team or student council won’t matter at all for graduate school. However, what about internships in industry, competing in science/engineering competitions, or being a tutor that teaches high school kids math and science? Additionally, what if you’re given an engineering internship, but it isn’t directly related to your desired research? For example, I’m interested in doing machine learning in graduate school, but I get an internship where I get to help in the development process of making apps from a relatively unknown company? And also, I’m trying to aim for a top 25 research university, should I just maximize my time by just doing research? If I were to spend lots of time for an engineering competition, but I only reach the semi-finals, would that be a waste of time? Should I still add that to my application? Sorry if I ask lots of questions. I tried searching all over the Internet, and I can't really find any answers. Thanks.