An old concept is emerging again with leaders in the digital age: the servant leader.(2)
The notion send back humility but also is useful and not necessary a lack of strength.
This notion is not new. Some in the 20th like John Aldair (1) born in 1934 and in late 1970 with Robert Greenleaf wrote about the leader who is helping people in his team to achieve their objectives by providing support and help.
"You serve my career then I am serving you in return, too" could be one of the sentences of the perfect "servant leader".