Been running bad and confidence is low even though playing pretty well (managing tonget to last two tables

with no hands and then getting rivered type of thing) but now beginning to doubt seemingly simple stuff.
This hand is intriguing due to nature of tourney, opponents and chip stack.
Live freeze out with mega slow structure. Blinds 150/300 25 ante.... Table is full of pretty terrible live players many of whom belong to the limp call brigade irrespective of position. I have found the iso range raise that they will generally fold to but on the whole I haven't been overly active and picked spots to garner chips.
Utg limps... Standard station that likes to bluff a bit and has the odd move in his locker . Two other limpers..me BB with QQ... I make it 2100 from 15k.. Slightly bigger than usual but as i said the table is full of limp callers and I could well be playing this hand op 4 handed..... Utg then shoves for a total of 13k...
Now here's the thing..with a perceived significant edge and still deep is there a case for a fold here? Do we think utg is playing the standard ( yawn) limp shove with aces? Or his range is wide enough we are going to be nicely ahead to make this a +ev call when considering opponents and more than workable stack. Do we need to call here or just continue to play v weaker opponents without endangering our tournament?
Ps. Any comments from Celtic will be ignored due to him being tez and only saying things to spite me