Well if that’s your angle, then the main reason for choosing WhatsApp over telegram is the first-mover advantage. WhatsApp came out years before telegram and is a very popular app in many markets.
I’d argue that not many people care about sending 2gb files either. In my experience, more people care about privacy when prompted than about sending 2gb files.
I agree. In general, lobbying is a much bigger issue than the “billionaires”. Lobbying exists at all levels. You can have a dinner with a local politician for a very affordable fee ($3-5K), and meet the former or the future president (maybe even the current) for $200-300K. Lobbying is everywhere, it’s not limited to billionaires.