How do skill, type of job and demand for products affect wages?

The higher job and higher skill of making or selling said product means people are more likely to buy so you will have higher wages

Answer

The skill set of a person may be valuable or non-valuable based on what the demand for a certain product is. The more value for a skill the higher of a wage because the employer would want to keep the person with the skill. Like if having a cell phone is in high demand, people who have a skill in engineering will be paid more because they need someone who can program the phone to be the best.