I disagree: the right thing is to let the minimum income be the minimum income, regardless of employment [0], and let market value of labor set wages.
[0] But wages should always be on top of minimum income, because otherwise there is a range at the bottom with no marginal incentive to do economically valuable work.
[0] But wages should always be on top of minimum income, because otherwise there is a range at the bottom with no marginal incentive to do economically valuable work.