You can rationalize all you'd like, but you made an agreement under sound mind and choosing to not fulfill it is slacking. It's dishonest. Wage theft or anything else is immaterial to your agreement. You are free to leave at any time and market yourself to another employer if you no longer wish to partner with your current employer. Or, if you feel your agreement is no longer fair or meets your goals, you can speak with your employer about changing the terms of the agreement.

you're atomizing the solution space by saying that workers must negotiate their conditions individually with their employers directly. that's not how this stuff has changed in the past and how we got to where the current status quo is with contracts. you're even repeating union busting talking points that are hardly settled ethics