Such limitation was the result of political pressures but also of the fact that, by the end of the seventies, Ruja had strayed quite far from the mainstream of pop music. Nevertheless, several of the attitudes established by Ruja — having undergone some compromises by then — became the basis for a certain legitimisation of rock music in the 1980s.
Seda kindlasti poliitilistel põhjustel, ent ka lihtsalt sellepärast, et Ruja kaldus 1970. aastate lõpuks popmuusika peavoolust võrdlemisi kaugele.