Translate the following English sentence to French:
"In other words, the overriding aim has been to maximise profit in a sector which is already highly profitable, and this has led to cuts in investment which have affected the quality of the overall service provided for the majority of users."
En d'autres termes, l'application de la logique du profit maximum dans un secteur hautement lucratif a créé des pressions dans le sens d'une réduction de l'investissement, qui influence la qualité du service universel garanti à l'ensemble des usagers.