One verse

Srimad Bhagavatam 6.2.4

6.2.4

यद्यदाचरति श्रेयानितरस्तत्तदीहते । स यत्प्रमाणं कुरुते लोकस्तदनुवर्तते ॥ ४ ॥

yad yad acarati sreyan itaras tat tad ihate sa yat pramanam kurute lokas tad anuvartate

yat yat
whatever
acarati
executes
sreyan
a first-class man with full knowledge of religious principles
itarah
the subordinate man
tat tat
that
ihate
performs
sah
he (the great man)
yat
whatever
pramanam
as evidence or as the right thing
kurute
accepts
lokah
the general public
tat
that
anuvartate
follows.

The mass of people follow the example of a leader in society and imitate his behavior. They accept as evidence whatever the leader accepts.