Trivia: Casino Royale was originally supposed to have been the inaugural film of a rival James Bond series produced by Sony. MGM/UA would later acquire Sony's Bond properties in exchange for the Spider-Man franchise.
Trivia: Former James Bond Sir Roger Moore enjoyed the film so much, he purchased the DVD.
Chosen answer: Le Chiffre operates as the banker for Mr White's entire organisation. The Ugandan is only one of many individuals and groups for whom Le Chiffre provides financial services; killing him does little to solve the problem of the missing money. Plus there's the question of trust - if Le Chiffre can't keep the money safe, then Mr White's organisation have no use for him and, as we see in the movie, will readily eliminate him. Le Chiffre's desperate to recover the money to prove his trustworthiness and save his own life.
Tailkinker ★