These days every person says that the Jathedaar/baba of their group has been doing bhagti for decades and has the greatest bhagti.
But How do we measure someone's bhagti?
During Kharrku movement, there were many young Kharrku Singhs who were only doing nitnem and Gurbani paatth for few years but yet they gave shaheedi.
On the other side, we hv/had these old babaas doing bhagti for decades but were/are still afraid of the government and some also become agents.
I think bhagti only brings fruit if one has love and loyalty for Guru Sahib.
Spiritual progress depends on Gur Prasad and Gur Prasad cannot happen without love and loyalty.