Importance of sales and marketing

First of all, all companies create a product whether tangible (GM) or intangible (Insurance). They must market it by getting it out to the public to see how it is the answer to a problem. The sales force shows how the product solves the particular need the individual has for the product and selling it. So sales being comprised in the marketing dept., distributed these products, which generate income so that the company remains solvent and hopefully grows