As I said Economics 101 rather than Marx 101 should help.
Short of that let me try again. Salaries do not just magically appear by themselves. They become what they are as a result of the supply and demand for labor. Income for most people is determined by the market value of the productive resources they sell. What workers earn depends, primarily, on the market value of what they produce and how productive they are.
As the world shrinks and good and services become intertwined capital will naturally seek to increase its potential value by searching for means - automation, other labor sources, efficiencies, etc - in order to maximize its profits. This process can cause disruptions in the traditional patterns of a society but these disruptions usually work themselves through and eventually will the result being more efficient, higher quality goods and services and overall benefits to those societies that buy into this economic model. This has been proven so again and again.