Greetings Sushirom!

Thank you for bringing this matter to our attention. Unfortunately under the current design, only the linkshell leader has the ability to perform the actions that you described having trouble with. We can certainly understand how this would be an inconvenience, so you may want to leave feedback about possibly changing this system in the future. You can do so at the Square Enix Support Center at http://support.na.square-enix.com under "Final Fantasy XIV" > "Contact" > "Suggestions and Feedback." In the meantime, this is currently working as designed. The best course of action in this case would be to remake the linkshell with a new leader. Thank you for your patience, and best wishes to you!