Nepotism doesn’t factor in in any explanation I have given because they would only factor in getting around equal access to materials, labor, production, or markets, or possibly skirting regulations. Your argument is “No, those instances of horrible working conditions were nepotism, even though there was nothing illegal or unfair about it.”

Unsafe working conditions are merely a cost-analysis in capitalism. If you make more than the costs of a decision, what is stopping capitalism from implementing those unsafe conditions if they are not illegal? Nothing. Capital-holders hold all the power and make the decisions, the workers do not, and that is the problem.

Who would work for Jeff’s sugar factory if Jeff’s sugar factory keeps blowing up and jim sugar factor understands the process and puts it nessisary safe gaurds

If Jeff somehow makes more money than Jim, why would Jeff ever stop? What makes you think Jim wouldn’t simply start doing what Jeff does? Ideally, exploding factories would be more expensive, but that isn’t always the case, so I ask again, what does capitalism do to disincentivize chasing profits at the expense of the workers or consumers or safety or the environment or the planet?