Whenever advertisers look for direct display ads or sponsored post ads on any blog or website they usually look for the metrics as those are the only signs via which one can get idea about the quality of website before even contacting with the owner. Getting targeted visitors via traffic generation tool will improve the rank and the rank will help you to get more advertisers who will pay you.
Not all web traffic is welcomed. Some companies offer advertising schemes that, in return for increased web traffic (visitors), pay for screen space on the site. There is also "fake traffic", which is bot traffic generated by a third party. This type of traffic can damage a website's reputation, its visibility on Google, and overall domain authority.