Marcus Ulpius Traianus once said that the government of Sextvs Afranivs Bvrrvs and Lucius Annæus Seneca was one of the best and fairer during the imperial period.
However, both of them died in strange circumstances. What is the reason of their tragic end if they ruled so properly?

Sextvs Afranivs Bvrrvs and Lucius Annæus Seneca were born in the same year (757 after foundation of Rome) and according to Roman historians they were the most valuable and erudite people around Nero Claudius Cæsar Augustus Germanicus.
Both of them attempted to minimize the excesses of the young emperor and their policies were based on commitment, diplomacy and legal and fiscal reforms. 
They managed to reduce indirect taxes as they fought against concussion (discussed in Transparency II: Marcus Tullius Cicero) of the provincial governors.
This fight for the transparency, which was beneficial for Roman citizen, created to them many Public enemies in Public Administration, and consequently they lost progressively the favour of the emperor.

Sextvs Afranivs Bvrrvs, when he was 58, was poisoned by Nero Claudius Cæsar Augustus Germanicus. He also tried to kill Lucius Annæus Seneca but he did not die due to a diet he was following to avoid being attacked.
Due to his failed attempts, the emperor used the tribune Silvano to condemn to death to Lucius Annæus Seneca, when he was 61, accusing him of participating in a conspiracy against Calpurnio Pisón.

That is the way people who fight against corruption were killed by the power, one of them through poison and another one by the inadequate use of the justice.

The transparency of an administration dies in hands of corrupters and justice when this one, instead of protecting the citizen, is at disposal of power or refrains.