Despite all the revenge she would be inflicting onto the Queen by torching the eggs,I think there's a bit of strategy to her escape of the hive too - she basically negotiates with the Queen, making her hold back the other Aliens from attacking Rip. Then, once she felt that she was far enough, and once that single egg hatches, she kinda dealt with the threats in a logical order, didn't she? Flame the eggs, kill the warriors on the wall. Ripley get's swept in the moment but also, as far as she can tell, the Queen is also kind of glued to the hive - despite the Queen's size, not the immediate threat.