Help me frame my "why banking sector"

Banking and other government exams are my secondary/backup plan and CAT is my first choice for this year. I cleared ibps mains this year but Im from arts background, both in school and college so I dont know how am i gonna answer if the pannel asks me why i want a job in banking sector. I cannot seem to make up any genuine excuse😭. Please drop in some ideas.

Something about me - 7/7/5 acads, 1 yr job as a data entry operator, future goal is to go into VC after 10-15 years.