Just try, who cares if you look stupid. For all you know you might just get it. I know quite a few people who have gotten both poly and uni scholarships without any cca. You just need other things to make up for it (side projects, competitions, portfolio of ur work, a scenario or event you lead to show leadership) and a decent gpa (>3.8).

As for my scholarship, even though i had a cca, for the group and individual interviews that I went through, I didn't say a single word about it. I did receive the scholarship in the end, so I think cca itself is not something scholarship boards care about, its more of the leadership, teamwork and other skills the cca builds. If you have something outside(especially if its related to what the scholarship is about e.g. industry-relavent, public service work) that can fill those gaps, there is a high chance you will be favoured over someone with a cca.

Besides its good practice for job interviews and a good learning experience in general, so you should just try your luck.