Nero and the Traditional Roles and Expectations of a Roman Emperor

See attached document. I would like some help with some key points and ideas based around the passage and contextualized around the question. Primary and secondary reference sources would help too.

1.
Suetonius, Nero 16 and 18.
He devised a new form for the buildings of the city and in front of the houses and apartments he erected porches, from the flat roofs of which fires could be fought; and these he put up at his own cost. He had also planned to extend the walls as far as Ostia and to bring the sea from there to Rome by a canal. During his reign many abuses were severely punished and put down, and no fewer new laws were made: a limit was set to expenditures; the public banquets were confined to a distribution of food; the sale of any kind of cooked viands in the taverns was forbidden, with the exception of pulse and vegetables, whereas before every sort of dainty was exposed for sale. Punishment was inflicted on the Christians, a class of men given to a new and mischievous superstition. He put an end to the diversions of the chariot drivers, who from immunity of long standing claimed the right of ranging at large and amusing themselves by cheating and robbing the people. The pantomimic actors and their partisans were banished from the city.
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So far from being actuated by any wish or hope of increasing or extending the empire, he even thought of withdrawing the army from Britain and changed his purpose only because he was ashamed to seem to belittle the glory of his father.51 He increased the provinces only by the realm of Pontus, when it was given up by Polemon, and that of Cottius in the Alps on the latter's death.

Question: How does the behaviour of Nero described in these passages adhere to
and/or deviate from the traditional roles and expectations of a Roman emperor?