The favours that we enjoy (irrespective of what type of a favour it may be) come to us via some means. Hence, it is necessary that we respect and honour the means through which we gain the favour. This is what Allah Ta‘ala instructs in the Quraan Shareef.
This applies to all facets of deen, whether in the madaaris, tableegh or khanqah. The more we respect the elders through whom we gained these favours, the more we benefit and progress.