Answer:
There are more small business owners than corporate executives and elected officials need all the votes they can get.
Step-by-step explanation:
The US is considered the most capitalist nation in the world, so there are a lot of entrepreneurial initiatives that generate jobs and income for a sizable portion of US citizens. In addition, this significant number of small businesses make the people involved in these activities outnumbered corporate executives. Thus, it is doubly strategic that politicians support the activities of small businesses: first, because they are an activity that jointly benefits the country's economy and creates jobs, second, because they are many, these people generate many votes and are a large constituency.