Weird 88 hand 50 rebuy

[Roman]

Min raiser was loose...
Does dead money in the pot justify push?

PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (9 handed) converter

BB (t6535)
UTG (t20125)
UTG+1 (t16380)
MP1 (t15305)
Hero (t10900)
MP3 (t14225)
CO (t20530)
Button (t23810)
SB (t23790)

Preflop: Hero is MP2 with 8[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">2 folds</font>, MP1 calls t400, Hero calls t400, <font color="#666666">2 folds</font>, <font color="#CC3333">Button raises to t800</font>, <font color="#666666">1 fold</font>, BB calls t400, MP1 calls t400, <font color="#CC3333">Hero raises to t10900</font>