FB/Google rose on merit, becoming bigger with equity dilution. Now there's a community aware about the ills that come with monopolies, (i.e. power to lobby, throw weight around on users and the government) and so choose to dislike the company (or in extreme cases boycott their products).
Coming to Jio, their parent company Reliance is the biggest business group of India (the promoter is the 5th richest person in the world). The group is infamous for being corrupt in the business community and the number of questionable instances cannot even be counted. My company has done business with Reliance in the past and has never received payments for the same.
India being a lot more corrupt as a nation gives this company powers that would be unfathomable in developed nations. Just for a few small instances: this company has on many occasions changed regulation just to benefit their business model (or disruption) by sheer political clout. Even in case of Jio, the telecom interconnect charges in India were made 0, and will be changed again when Jio is in a position to benefit from them. And this is just 1 rule change. Vodafone's CEO has openly appealed that India's telecom authorities appear to be working for the interest of Jio only.
This topic is just too big to summarise, it needs a multiple volume book. You're not gonna believe this, but a few authors who have tried to write on the way this group has come up have been banned in India, this probably gives you an idea about how dangerous this group could be. Reliance's books are not believable, debts are irrational, business practices are unethical, etc, etc and the list will go on.