Why does Ethics and Anti-Corruption Commission probe cases that Director of Public Prosecutions dismisses casually?

Either the Ethics and Anti-Corruption Commission (EACC) is hopelessly inept, out on witch hunt or the Director of Public Prosecutions (DPP) office is a firewall against corruption.

One of the EACC commissioners who left office in a huff had accused the DPP of stonewalling. It is hard to discount the belief that high office holders are never imperilled by the laws of the land which would ordinarily come crashing down on unfortunate lowly placed citizens. It is almost as if two versions of the law exist; for the rich and the poor.