the real MVP

I am playing league for about 6 years and i cant understand the fact that all the teammates i have think that the best player is the guy who plays assasin and just taking kills. After the most of my games i see that everyone on my team has honored the player who dealt the most of damage (usually an adc) despite the fact that there isnt such an honor (dealing most damage) and as a tank player i feel very unappreciated