Is CPC Related to CPA Directly?

I just care at the end of the day about getting the cost per conversion down for the most part, like 90% of what I care about is that. And then the other 10% is me worrying a little bit... am I actually limiting myself in terms of impressions or reach or clicks? That's my firm belief. The more that I can have more ads that are getting more people to take more valuable actions that I can track, the more that those ads are also leading to other impact beyond just the conversions that we're tracking. Like it's a big one. Sorry, eight up a lot of time there. But that's my whole spiel.