Most application follow a very similar format
General information
Academic & Work Background
GPA and Test Scores
Personal Statement (usually limited to around 450 words)
Reference letters
The only part of the application that someone can mention participation in various engineering societies and clubs, etc .. is within the personal statement. Considering that most people have a lot to say beside extra curriculum activities in the personal statement, like their research interest, and why they like a particular graduate program, how can it become the most important part of the application ?!
I understand your frustration and I hate to be the one who tells you this, but GPA and test scores are primarily a screening mechanism. Yes, you need to be at a respectable level, but a person who has a 3.8 GPA and a 750 Quantitative with summer interships and a couple of presentations at Society of X students national meetings will be a stronger candidate than someone who has a 4.0 and an 800 with no experience.
Your personal statement should be a selling spiel about what a great candidate you are based on your experience. What are you putting in your personal statement if not things like
"During my internship with X Company, I became interested in Research Area Y" with a big paragraph on what you have done in Y and how you will continue your research in Y at this school.
"During my junior year, I worked on the Big Project with Club Q and found that ..." with a big paragraph relating how this has motivated you to continue your education on related topics and why you are a good fit for this particular program.
Why wouldn't you include entries in work history for the internships you held, undergraduate research experiences, and the offices in various relevant clubs? Yes, if all you did was attend meetings, don't include it. If you spent your senior year arranging for speakers and organizing field trips for the local chapter of the Society of Z Engineering Students, put that in somewhere. Most applications have a spot for publications and such, put in your presentations at the annual national meeting or also put those in the work history section.
In addition, your references must be able to say much more than "Pemfir is a hard worker who got an A in my class". That's a given and will be ignored as standard boilerplate. Those references should be writing about your other qualifications and particularly your research abilities. Graduate school is not about grades, it's about training for research and becoming a professional. Why should this program invest time and money in you? People who can demonstrate that they have already done many of the expected preliminary activities have a huge advantage over people who just did the minimum. I know that the effort required to get good grades feels like doing more than the minimum, but the bar goes up when you get to graduate school and you need to jump higher.
Likewise, the GRE is just one test, but it's a hoop that you must either get through or otherwise get past in one of the standard approved methods. Failure to come to terms with that idea means that graduate school is not for you because this is just the first of many ridiculous and not-so-ridiculous challenges that you will need to overcome.
Good luck!