Description of GURU badge
Accepted answer and score of 40 or more. This badge can be awarded multiple times
You do not have any accepted answer with score of 40 or more. So this badge is not awarded to you.
As @Bart said here: Score means upvote minus downvote not reputation.
To be honest, I had this proposal but deleted it because it wasn't supported. Later I agreed, however, that making the Guru badge gold wouldn't be right.
Then we have the Enlightened badge for being the first to answer and get accepted with 10+ votes. That's a silver badge and may I point out that 10 is 25 divided by 2.5. Obviously. So let's take a look ...
Guru as currently defined is very hard to get on smaller sites. Your change would take that badge out of circulation entirely on such sites for all practical purposes.
Guru is hard enough to get (outside of large sites) that perhaps it should be gold with its current definition. But we shouldn't redefine it out of reach; either leave it alone and ask for ...