I can contest to this, I am by no mean important and none of my servers that I own have any importance, BUT I have thousands of people trying to remote into the servers every day and also thousands of requests into some of my webservers with things like /admin /phpmyadmin or whatever, you name it.

So yeah even if you aren't a big target then you are still a target for automated attacks as they just pick whatever IPs they can find and try to breach.