While the TV show says that the scientists are successful in their field, But, Raj's astrophysicist carrer never boosted up. Sheldon found a new element but it was a mistake and he backed up. Leonard and sheldon wrote a paper but nobody cared. Howard is a MIT trained Engineer but cant even fix a drone and the space waste disposal system he built failed miserably.
So this is not quite getting on the top of what the show promised. The story is awesome and it is funny, dramatic, emotional.
Part of me loves this TV show, but the script writers should've focused more on the achievements of the scientists individuals