Scared the upper class
Bacon’s rebellion rattled Governor Berkeley and got the attention of the upper class. They started to ask questions about the government’s capacity to control it’s people, enforce taxes, and prevent revolution. It took a lot of manpower and money to quell the rebellion and another such rebellion would be costly. Berkeley realized that power lies in the majority, specifically the working class and former indentured servants. The government needed to find a way to manipulate or divide the poor in order to deflect negative attention.
Slavery
As tales of indentured servitude made their way back to Europe, the number of indentured servants coming to America shrank. Indentured servants were the ones responsible for the rebellion, and the governor wondered if they had too much free time. This, plus the growing fear of the lower class led to human slavery, although it wouldn’t take off for another twenty years. The growth of slavery caused obvious racial tensions to grow between whites and blacks. This broke up the lower class’s power and shifted attention away from the government and onto each other.