What are the advantages of comparing the last two sentences of the poem Match with The Man Who Wasted a Hundred Years?

Matches instantly burned life, but they also injected infinite value into their own lives. They burned themselves while serving others. And those who have "wasted a hundred years" have never shown their value, although their daily lives are in a daze. By comparing different life values, it is even more obvious that "death is lighter than a feather and heavier than Mount Tai". A valuable life, even a short life, is also recognized.