In simple terms, economists say that in a perfect market, price will always go back equilibrium except where one of actors in the market behaves in a non-rational manner or when a non-market actor intervenes in an non-inefficient manner. The first is often seen in the insurance market where because you know you are insured, you may become more reckless. The second is where the govt not knowing or having been negligent in its duty flies in with tax money and rescues a firm in a particular sector or market. The hazard is that it now becomes a given that every other firm in the said sector/market will be rescued by the govt if its unable to continue its business. In some countries it become known as the tbtf (too big to fail) syndrome. The second hazard is that at some point, the govt will find that taxpayers baulk at paying for another profit-making firm to be rescued. This typically tends to be a bigger firm than the one the govt initially rescued.
Moral hazard of the non-market actor type abounds everywhere. Kenyan parastatals and partially-owned firms all fall under this line. Most operate like they can always be rescued tomorrow. In the US/UK markets, banks have been behaving with tbtf effect since Bear Stearns was rescued earlier in the year.
Bottomline: Govts either need to acknowledge that moral hazard exists and act appropriately or it doesn't and then be consistent.