Let’s get this labor thing straight. Labor has no value other than under capitalism we can create a consumer out of the laborer which organizes the very fractional contribution of labor into large groups producing many complex parts, and the complex part provides the value.
The profit on the price is required to organize others in this network.
That’s the whole thing. If you’re ‘labor’ you aren’t ‘value’ to others, since none of us is productive enough to matter. What matters is multipliers, and labor isn’t one.
Labor’s primary value lies in (a) you are at least self supporting because (b) as a slave you’re even less productive, and (c) as a barbarian you’re a parasite.
The value is in organizing using incentives using prices and profits.