Sony needs to create their own niche.People aren't going to ditch their friendlist or console for GP. This is delusion.
If they can manage to get Square Enix, Capcom and maybe either Larian or CDPR they could have a unique standing like Nintendo. Not directly Nintendo but somewhat in that way.
After Zenimax was was already huge buyout , Microsoft also got 3 big publisher with Activision, Blizzard and King. Sony could easily justify it.