If that will happen, bitcoin will be too much expensive for almost everyone. It os because satoshis are like cents of cents of bitcoin. But if this will happen, those who have bitcoin will be the richest persons in the world. Though this event will take decades or even more than one century in my opinion.
You are right and for anyone who has bitcoin even in small quantities will surely become rich. It will also have an impact on transaction fees that will certainly be more expensive. On the other hand, if bitcoin prices jumped sharply, then sure things will happen to most altcoins, surely the holder will profit big. However, does that mean bubble bitcoin becomes so big?