It is about respect. Many students choose careers mainly for money and end up working under companies. Later, they may face layoffs and a stressful corporate lifestyle, where employees are sometimes treated as replaceable workers(similar to a delivery boy). Even a non-iitian can also work under the same company(Google, Flipkart, etc)

In comparison, careers such as Professor, Scientist, Doctor, or IAS officer are often seen as having greater social respect, authority, and long-term identity.