So what's the argument against getting into the music business? Are you concerned about supporting something you don't agree with or being exploited or humiliated?
It sounds like you're trying to choose between a 9-5 job and a multi-million dollar contract with a major label. It's very unusual for people without established careers in music to be offered a significant amount of money by a major label. Or to be offered anything by a major label - even a meeting.
Usually, musicians start out by playing gigs in their local area while working a regular job. Usually, if they are hoping to make a career out of music, any income from those gigs is invested in the music - better equipment, better recordings, advertising, etc. Usually, you have to do this for at least a few years, tour, establish a following, and put out at least one full-length record before a major label will take interest. If you're successful enough to get a major label interested, you might be just as successful doing it all independently. Once you reach that point, you have a lot of different options.