But if we are part of a large group who are all doing the same thing, then, we feel, our importance diminishes. That same joy and love felt toward the first one to bring the offering was felt on an equal level to all that followed him. As we approach Shavuos, we know that tens of thousands of Jews will be studying Torah that night. Each of the nesi'im had an entire parsha dedicated to him. Every single one of us makes an incredible difference.
Every additional person learning, every additional word that is learned has an extraordinary effect.
The gemara states that if three generations stay true to Torah then it returns to its 'achsanya', to its host. Rav Chaim Volozhiner brings a question that his younger brother asked his older brother. He answered that the Torah will return to that host. It will avail itself to the next generation. If it is welcomed then it will stay.