The problem with the character of Janeway is not that she "didn't listen." She did -- sometimes. And she also didn't -- sometimes.
The real problem with the Janeway character was that she was inconsistently-written. Her motivations and values would change from episode to episode, without any particular dramatic purpose or context. Her character -- like most of VOY's characters -- was fundamentally arbitrary, because the writing and characterization on VOY was fundamentally arbitrary. It's like Robert Duncan McNeil has said -- the attitude that the highest-up producers had was that the ship was the star, not the characters.