A "noble goal" refers to a worthwhile and honorable objective or ambition. It typically involves something that benefits others or contributes to the greater good. Full definition
It speaks to the highest and most noble goal of education — self - improvement and knowledge for knowledge's sake without being hampered by barriers of money, location or other access issues. (slaw.ca)
Or the ones based around my less selfish, more noble goals? (emcneill.com)
That is a worthy, even noble goal, within limits. (firstthings.com)