Why should progress in meditation lead to rebirth in a more worldly setting?

It seems that the more successful your meditation is, the more lavish the surroundings of your next life (e.g. rebirth in a heavenly realm following the attainment of certain meditative states). However, this seems contrary to the goal of non-attachment, and a more logical karmic result of meditative attainment would be rebirth in some setting that would most easily propel you into a monastery. So, why does progress in meditation cause rebirth in a more worldly setting?