Two Previously Unreleased David Bowie Tracks Leaked Ahead Of New Box Set

Two previously unreleased tracks from a ‘lost’ David Bowie album have leaked ahead of an upcoming box set release.
“Karma Man” and “Silly Boy Blue” were shared on Friday. Both are re-recordings of early Bowie tunes, made for his ‘lost’ 2001 album Toy.
Toy will be included in the upcoming box set David Bowie Five: Brilliant Adventures (1992-2001), due out Nov. 26th. It will also get an individual release sometime next year.
What made Bowie so influential for such a long time? Why do you think Toy was never released?