Unless your package is a fairly small, you probably won't do all the work on it yourself.
Most maintainers recruit other developers to help.
Sometimes people will offer to help. Some of them will be capable, while others will not. It's up to you to determine who provides useful help, and encourage those people to participate more. Some of the people who offer to help will support the GNU Project, while others may be interested for other reasons. Some will support the goals of the Free Software Movement, but some may not.