I want to reinforce the clear answer given by @C_T
Points and badges are the representation of our activity. We receive points and badge because we contribute, but we do not contribute to receive points and badges.
“There are millions of Local Guides around the world who share reviews, photos, and knowledge on Google Maps. Doing this helps others find great local places, supports small businesses, and can even make it easier for people to get vital information.”
I agree with @ErmesT and @C_T . As a local Guide our prime motto should be contributing towards Google Maps with unbiased reviews, clear picture of the premises or locations to help our social community in taking better decisions while searching those places on Map.
Badges and points are the motivational gesture from Google.
So keep yourself motivated and put your best to Google Maps.
As mentioned by @C_T and @ErmesT , everything is mentioned already… no need to repost it again plus we don’t contribute to get points. We contribute to help others and make maps better for all of us.