Playstation always helped third party companies. During NES days Nintendo was very strict about how many copies can third party companies make (they had valid reasons). But later Nintendo became too bossy. This is why all companies helped Sega. Then came Playstation which was savior of the market. PS4 is like PS1. Making path for big companies and indie developers (Playstation 1 gave birth indie developers) for their usul and innovative titles.
Im not sure about that. Theres been small studios before the ps1.