Lots of leadership positions in a bunch of school clubs that have 3 people each, or did you lead a group or team (academic, athletic, etc.) to compete in something that won a state level or higher championship?
If you have a “defect”, then your standout achievement or characteristic must be even higher level than what successful applicants to super-selective schools typically have. And even a “typical” (for such successful applicants) standout achievement is likely to be much higher level than what most applicants think is a standout achievement.