Complex sentence: However, the increasingly indifferent responses of those involved in the implementation of laws protecting the weak, the oppressed and the socially disadvantaged have persisted over the years and the system has failed to provide for self-correction.
Split into simpler sentences: However, the responses of the players in the implementation of laws protecting the weak, the oppressed and the socially disadvantaged have over the years become increasingly indifferent. The injustices have been allowed to persist and the system has failed to provide for self-correction.