Given the question: Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: What caused Vince to become arrogant and self-absorbed? Movie plot title: Jailhouse Rock Movie plot: Construction worker Vince Everett (Elvis) accidentally kills a drunken and belligerent man in a barroom brawl. He is sentenced to two years in the state penitentiary for manslaughter. His cellmate, washed-up country singer Hunk Houghton (Shaughnessy) who was jailed for bank robbery, starts teaching Vince to play the guitar after hearing Vince sing and strum Hunk's guitar. Hunk then convinces Vince to participate in an upcoming inmate show, which is broadcast on nationwide television. Vince receives numerous fan letters as a result; but out of apparent jealousy, Hunk ensures they are not delivered to Vince. Hunk then convinces Vince to sign a "contract" to become equal partners in his act. Meanwhile, during an inmate riot in the mess hall, a guard shoves Vince, who retaliates by striking the guard. As a result, the warden orders Vince to be lashed with a whip. Afterwards, it was discovered that Hunk attempted to bribe the guards to drop the punishment, but to no avail. Elvis Presley as Vince Everett talks to Mickey Shaughnessy as Hunk Houghton in their cell. Upon Vince's release 20 months later, the warden gives Vince his fan mail. Hunk then promises Vince a singing job at a nightclub owned by a friend, where Vince meets Peggy Van Alden (Tyler), a promoter for pop singer Mickey Alba. Vince is surprised when the club owner denies him a job as a singer but offers him a job as a bar boy. Undeterred, Vince takes the stage when the house band takes a break and starts singing "Young and Beautiful." But one of the customers laughs obnoxiously throughout the performance, enraging Vince, who smashes his guitar on the customer's table and leaves the club. Peggy follows Vince and persuades him to record a demo so that he can listen to himself sing. Vince records "Don't Leave Me Now," which Peggy takes to Geneva Records. The manager seems unimpressed, but he reluctantly agrees to play the tape for his boss in New York. The next day, Peggy informs Vince that the song has been sold. She then takes him to a party at her...
The answer is:
his success