No, it doesn't. If it is lower, assuming you mean the group, then it is likely one of the following reasons:
- The member has a role that is higher up in the group, so they were given that role (we always give the higher up role unless requested not to).
- There are not a lot of members with that role in the group.
- There are not a lot of people in that development category (Example: There are tons of builders and scripters, but there are little voice actors and musical composers because there are fewer people who do that job)
There are some that may take more time to get, but none of them are really harder than the next.