The placement on campus is affected by your grades. Most finance and consulting firms are prohibited. So it comes down to startups, Tier 2 marketing, media, and other companies, or companies that hire for attitude.
Once you start working, you will be able to easily make up lost ground if you are willing to hustle and communicate well. As a result, there is no single general rule. Some people in the bottom 20% fare extremely poorly, while others are moderately well. In comparison to the top 20%, where the majority perform exceptionally well and a small minority perform exceptionally poorly.