There are two types of Diabetes...type 1 and 2. I don't agree with your comment on reducing obesity as Type 1 is a much different disease than Type 2.
I argue the opposite in that Nightscout and other initiatives that predominately serve the Type 1 community help push the advancement of monitoring, etc. that benefit the rest.
Thought on treating type 2 is also evolving in ways that don’t benefit type 1 as much. For example, the trend is for pre-diabetes to be taken seriously and detected earlier.