Why would he (movie star) be "more worthy" than sub-mc? All that would achieve is 2 people with busy schedules, rarely seeing each others, and an income even more overly inflated than movie stars already tend to be? Particularly for japan, where one partner is expected to drop their job and take over as a househusband, is sub-mc not the one most "worthy" as someone who does not have a matching career that would conflict over who should take their traditional role?
All that said, thoughts about "worthyness" is just silly in terms of romance. The partner decides if they think you are worth their time and efforts, not you. Sure, it's fine to think that you are not an ideal partner, and use that to strive to improve (be that through increasing your looks, fitness, longevity, maybe even changing your looks to their preferences if you don't mind those, doing chores, etc. etc.). But you will in no way become unqualified until the partner decides you have.