That might make sense for accounts like yours that have thousands of followers, but for those with only a few dozen followers, every interaction (including likes) counts and provides an incentive to continue engaging.
Discussion
Facts from the ground.
If you know the person that is liking, then you feel good. If you don't know the person that is liking you visit their profile - if it is fake or empty, then it means nothing and you may even mute that person. On the contrary if it is an interesting person, you earned a friend to follow.
The whole "problem" is a non-problem.