A skilled worker like software professional generates

A skilled worker like software professional generates more income than an unskilled worker.
Why?

A skilled worker generates more income than an unskilled worker mainly because the productivity of an educated and skilled person is higher than an unskilled one.
A skilled worker also commands higher earnings and gainful employment. This is because they cannot he substituted because, it takes years to generate a manpower which is skilled in a particular field. On th^ other hand, an unskilled worker like a rickshaw puller can he easily substituted and such workers easily compromise on lesser earnings.