Question: Why was mayor Angelo Errichetti prasied?
About the article "American Hustle", section "Historical accuracy".

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Angelo Joseph Errichetti (September 29, 1928 – May 16, 2013) was an American Democratic Party politician who served as Mayor of Camden, New Jersey and in the New Jersey Senate before being indicted during Abscam. 
Angelo Errichetti, mayor of Camden, New Jersey, was charged with arranging for undercover agents to meet with several politicians, who would end up accepting bribes to help use their influence on behalf of individuals posing as Arab investors, with Errichetti taking his share of the bribes.
He was convicted on the federal bribery charges, for which he served about three years in prison. 
A resident of Ventnor City, New Jersey, Errichetti died on May 16, 2013.
Camden mayor Dana L. Redd ordered that flags at Camden's municipal buildings should be flown at half staff during the day that his funeral was held.
His wife Dolores had died before he did.
He was survived by his daughter, Michele. 
Errichetti went into politics in 1961 as administrative assistant to Mayor Alfred R. Pierce and was named as Camden's purchasing agent and later as head of its Department of Public Works.
He was first elected as Mayor in 1973 and was chosen in 1976 to fill a vacancy in the New Jersey Senate.
In 1977 he was re-elected as mayor with 88% of the vote and won election to a full term in the State Senate.
As Mayor of Camden, Errichetti put in 12-hour days, working to improve the economy of the struggling city.
He exercised substantial control over the city's operation, and he had submitted seven budgets without tax increases that were passed with little oversight.
The City Council first scheduled hearings for his budget submitted in 1980.
Despite changes made by the Council, Errichetti was able to get his budget passed as is by a vote of 5–2.  
In the Abscam case, Errichetti was charged with arranging for undercover agents to meet with several politicians who would end up accepting bribes to help use their influence on behalf of individuals posing as Arab investors, with Errichetti taking his share of the bribes.
In 1981, despite his representation by attorney Raymond A.
Brown, Errichetti was convicted on the federal bribery charges, for which he served about three years in prison.
U.S.
Senator Harrison A. Williams had claimed that he was improperly lured to accept bribes, to which Federal District Judge George C. Pratt responded that Williams had selected himself when he accepted Errichetti's offer to meet with the undercover agents and that it was Errichetti who was "standing in the center of a cesspool of corruption".
After his indictment, he emphatically denied the allegations filed against him and refused to consider demands that he resign from his two elected positions.
His grip on local politics started to fade, with his three-member slate for the Camden Board of Education all losing in elections, though he was able to get all of his Democratic City Committee candidates elected in June 1980.
In May 1981, Errichetti was indicted on charges of bribery related to federally subsidized sewer projects, in which Errichetti was said to have received $10,000 in cash to steer engineering projects.