Your employment/career background will not be held against you, as long as it was all legal.

For mid/upper tier airline (and corporate aviation) jobs, you have to compete for the jobs. Folks with management/leadership experience will have an advantage, and they will expect you to present as a polished professional at an interiew. All in addition to your flying experience and skills.

A few airlines will be looking for an "upward trending" career trajectory. They might not want someone who did blue-collar labor for 30 years and the decided to go fly (unless he owned the business, we do actually see a lot of that in the airlines). But if you did military, then worked while earning a degree on the side, that seems like an upward trajectory to me.

Caveat: It's remotely possible that somewhere along the line an interviewer might not like you because you didn't come up through more traditional white-collar channels. But that's life, not everybody is always going to like you regardless. But aviation is full of folks who came up different paths. Nothing to loose sleep over.