Yes. At times. The ability to generate thousands of inputs in mere seconds is a big deal, given that we spend a majority of our time clicking on things online. This is why auto clickers are often associated with online click frauds, as you'll never know whether it's a real person or a bot behind clicks.
For example, people can program auto clickers to click on ads to generate revenue. Auto clickers can also be used to boost social media engagement and inflate the number of likes on a post.