Quickleaf
Legend
I've always felt D&D simplified religion too much, and preferred apostate plots to revolve around doctrinal differences not an abstract alignment.
For example, a paladin PC may belong to a church which advocates that their paladins have the right and responsibility to be judge, jury, and executioner of those who break religious law (which coincides with state law in several cases). During his adventures, the paladin PC decides this is too much power, but when he speaks out against the practice he is excommunicated. If he continues to be outspoken he faces retribution by his former church, but other paladins sympathetic to his cause may voluntarily leave the church to join him.
For example, a paladin PC may belong to a church which advocates that their paladins have the right and responsibility to be judge, jury, and executioner of those who break religious law (which coincides with state law in several cases). During his adventures, the paladin PC decides this is too much power, but when he speaks out against the practice he is excommunicated. If he continues to be outspoken he faces retribution by his former church, but other paladins sympathetic to his cause may voluntarily leave the church to join him.