I liken this to a paradoxical Catch-22 scenario, because it seems like without one you can't have the other. It takes money to drive traffic, but it takes traffic to make money. So don't make the mistake that millions of other online marketers make around the world. Before you attempt to scale or send any semblance of traffic to your offers, be sure to split-test things to oblivion and determine your conversion rates before diving in headfirst.
Understanding that a large database of leads is required for marketing automation to have any effect on their bottom line, many marketers end up buying lists of contacts to nurture with marketing automation. This spammy tactic produces incredibly low ROI. Along with the cost of buying these lists, sending unsolicited emails to people who have never requested any information from you leads to low engagement and hurts your IP address reputation, lowering your email deliverability rates.