what is the effect of bitcoin in the society if they became mainstream and what it will cause?

is it real thats theres real earning bitcoin in android apps...i install 4 applications in android...and its seem they all scam...amd when i read all the comments fake fake and scam scam so sad if theres a real one apps in android about btc can you tell me the apps name so that i can legitimate check if its real or not thx you