Chaya Sar: She was sentenced to protect the planet Proculus in the Pegasus galaxy, after she disobeyed orders from the Others to remain out of corporeal affairs when she acted to protect her former home planet from a Wraith attack. As punishment, she was permitted to protect only her people, unable to aid any others in the Pegasus galaxy even as she knew what they were going through. (SGA: "Sanctuary")
Orlin: He showed the people of Velona how to construct an Orbital weapon to defend themselves against the Goa'uld. After the Goa'uld threat had been averted, the Velonan people began to plan the conquest of other worlds. The other ascended beings came and wiped them out to "correct" Orlin's mistake—sentencing him to live alone on the desolated planet as punishment. https://www.amazon.com/shop/omegaordained Check out my Awesome new Sci Fi Store!! Interested in helping this Channel grow? go here: https://www.patreon.com/Omegaordained