I've started pushing in situations like this as well for reasons that sofere describes. Situations like this when blinds are getting high and I standard raise and then the flop misses me always cause me problems. You may even luck out and get called by AJ (or any ace rag at the lower levels) or KQ. People really love to defend their blinds with ace rag. I see it so frequently.

Do you fold if you standard raise and they re-raise you all-in? If not you may as well push it right?