We might be able to make the case that Michael Saylor was the first hijacker of Bitcoin.

I am going to have to say that Blockstream was the first to hijack it and this is why we ended up with BCH, which is more like Satoshi's actual vision than BTC, in my opinion (although I really feel like Monero is more like it, lol, but that is a different subject). Saylor has just jumped on the 'digital gold' train that they have created. His only innovation was being the first company to basically build a full on Bitcoin treasury and bringing his Wall Street cronies into the space.

I would suggest Roger Ver's book, "Hijacking Bitcoin" if you haven't read it already, there is also an audio version.