Since the new democratic dispensation in 1999, and more fundamentally since 2003, efforts have been at top gear (at the Federal Government level) to reverse the trend and lay the foundation for Nigeria to realize its potentials and join the first world economy. My sense is that not many people in Nigeria, including those in government fully appreciated the extent of system collapse.
In many instances, it has been akin to rebuilding a society from the scratch. Make no mistake about it: in the old order, some people (especially rent-seekers) made a lot of money and profited from the disorder. To make progress, this class either has to be uprooted, displaced or compensated to give way.