You generally read books to understand a thesis in more detail. If there would be a few examples of notable organizations that used democratic decision-making to great effect and someone would want to learn from that, reading a book that gives more details is a great idea. Reading a book to see whether or not a thesis deserves more attention on the other hand makes less sense.
https://forum.effectivealtruism.org/posts/54vAiSFkYszTWWWv4/doing-ea-better-1#We_should_probably_read_more_widely
You generally read books to understand a thesis in more detail. If there would be a few examples of notable organizations that used democratic decision-making to great effect and someone would want to learn from that, reading a book that gives more details is a great idea. Reading a book to see whether or not a thesis deserves more attention on the other hand makes less sense.