they put such advices in practice in their own lives

When Ramakrishna Paramahamsa

or

Mahatma Gandhi

felt that they should give some advice to the people

the first thing they did, as their biographies reveal,

is that they put such advices in practice in their own lives,

and

convinced themselves about the efficacy of such principles..

What about the social media  shares, social media  pictures, and social media gurus ?