What do you mean with "officer"? Centurionate? Tres Militia? Senatorial career? Because it differs a bit depending on the type of career.
However, in general money and seniority played no major role in the army of the principate. But in late empire. Patronage, personal performance and of course loyality to the emperor were the major criteria, as far as I remember the analyses about promotion.
However, in general money and seniority played no major role in the army of the principate. But in late empire. Patronage, personal performance and of course loyality to the emperor were the major criteria, as far as I remember the analyses about promotion.
Ut desint vires, tamen est laudanda voluntas