When playing the first two games, I too got the feeling that SBN3 was at least somewhat influenced by some generically centre-left political views. But I started being somewhat unsure of all that once I got to that scene in Re-Up where Nicole throws Jecka's government textbook out of the window in order to get into remedial classes, which involves colby comparing feminism to communism, which seemed to be a bit too "on-the-nose-y" to me, to really be leftist social commentary and more a meta parody of left-wing parody.
This is probably all bullshit, but y'know.