The score of gate is basically required to get admission in Mtech. Based on your score you may get NIT IITs for Mtech course. And some one score top 50s rank they may get chance to get psu. They provide a high income to the students. And approx top 100 ranker may get admission in the IITs of our country. The score is also required by some naming companies before hire. So it have different scope from your study to jobs.