The future benefit of another extracurricular

Hello everyone. To summarize, I am a junior at a super non-target state school who is interning in Corporate Banking at a large regional bank this summer. I am the current president of a banking club I created, and in leadership at a national college business organization. I am aiming at going to a top 10 MBA program later on in life, and preparing for it by maintaining a high GPA and preparing for my GMAT next year. However, the business org I am in wants me to be president next semester, but that is going to take up a big chunk of my time, as well as stress with everything else. How impactful would being president of one more club have on my application for a top tier MBA, assuming I grind out a high GPA and GMAT? Thanks.