Which word should i use in these sentences?

Question

The petitioners were fortunate to have a judge with a _____ temperament.

The labor reforms of the nineteenth century were____________ to factory workers struggling for better working conditions.

Beneficial
Beneficent
Beneficiary
Benign

Answer 1

Benign in the first sentence and beneficial in the second.

Answer 2

Benign
Beneficial

Answer 3

benign- means not malignant, so it is not negative
Beneficial- a positive benefit

Answer 4

beneficial