Something I never really noticed before until this thread got me in a ponderin' mood.
What purpose does the definite article of "The" serve by being in front of "Fragile" in the record's title as opposed to its absence in regards to "Broken"? With "Broken" it's easy of course to ascertain that the title is self-descriptive and singular. Here we have the broken down and enraged words of one man, thrashing out against the world (and Steve Gottlieb).
However, perhaps the "The" of "The Fragile" expounds upon the concept that the album is not just about this singular entity, yet that it is indicative of multiple entities. This is most apparent in songs such as "WiTT" and the title track. It is perhaps a means to voice the words of an entire group of people...the so declared "fragile" of our society. Or perhaps as @
Kris mentioned above, the plurality could be a reference to the left and right side of our protagonist's brain. Or even dissociative identity disorder.