No, Sage hasn´t always taken care of her sisters. Again, her sisters are whoring themselves for money, and she hasn´t observed nothing strange with them in at least a year. Apparently they have never been sad, or even depressed about it during all this time. But at first sight she sees that Maya need help, and helping her is, suddenly, the most important thing for her... That´s a plotline for Jill, not for Sage. I like the character, I enjoy a lot her scenes, the sexy ones and the romantic ones, but I don´t buy her plotline.