Science and technology are tools. Like means of production, they are used to serve the class that owns them. If the owner class wants "democracy", sure, they are interlinked. If they want to torture some folks, technology can be used to that end too.
Tweet being by Greta is irrelevant, an 18 year-old activist can have bad takes time to time. I saw this type of take a lot, and seeing it get liked 150k on twitter made me post it here. Disregard Indian chuds under the tweet: https://twitter.com/GretaThunberg/status/1358056887204384770
Both claim to be open to everyone equally, but a cohort of old white men end up being in charge in both.