Cracking faangm interview is the pinnacle of success or just a show off???

Is cracking faangm interview the pinnacle of success? Why are folks showing off so much as if they have done something significantly great. Isn’t it another job, just job? I have met many people working in normal companies, but their work is really impressive. They have many real world problems/solutions to discuss, apart from dsa and system designs. Most faangm folks just talk about dsa and interview preparation. Have hardly seen anyone talking about the real work they do. At max, they make course and start advertising.