Probably this is your first time in joining any organization. And for that, you need to ask people about the benefit of joining specific organization such as this accounting student association in your own campus. However, if you ask the said association directly, then the chance is that they would give you all the good things about being a member in the organization.
Of this, you need different kind of perspective to equally weigh the argument in joining or not joining with this accounting student association in your college. And that perspective is available if you join first any free online communities in the internet and start posting your problems there. Other members will soon make responses to your comment, probably, by even telling their own related experiences in joining any organization.
And for you, this retelling can be your best medium to help you weighing the argument. Once you see that there is actually much better benefit for you, and especially for your studies, to join the accounting student association in your campus then you have a go for your option. For, at least, now you have better and stronger reasons for doing something and know what to expect in your doing so.