Which does happen, believe it or not. Maybe a few received a taste, only to hit the minors again for the remainder of their career. Not Chicago Cubs related, but for instance, Mike Hessman.
Hessman, 38, played with the Atlanta Braves, Detroit Tigers, and New Yorks Mets. Atlanta drafted him during the 1996 draft — same class as former Chicago Cubs pitcher, Jason Marquis. So, he spent the majority of his career attempting a comeback.
Last season, Hessman broke the minor league home run record when he launched his 433rd homer in August of 2015.