It was not intrinsic to the Pharisees. Jesus was of the Pharisee tradition as was Paul and probably most of the other Twelve. What I think what you were looking at is an internal argument with many of the Pharisee and Sadducee leaders were enjoying their lofty positions and being rather hedonistic.
Jesus is not speaking of the teaching of the Pharisees, for they 'hold the seat of Moses' and teach what is true. The concern, I think, in this case is for the hypocrisy, as Jesus states, 'do as they teach, not as they do.' The parable illustrates the difference between a well fed life with that of a beggar.
The parable is not meant to attribute right and wrong to the Pharisee or to Lazarus. According to what I have read this ought to be understood as a two layered story, (19-26, 27-31) and concerns the rich man, his five brothers and the readers, will they follow the example of the rich man or Jesus teaching and the OT concerning care of the needy like Lazarus, like the children of Abraham. And if they do not there is no place for them at the messianic banquet. Another aspect of interest, I think for all of us Christians, Lazarus, in the bosom of Abraham does not gloat about the punishment of the rich man. The rich man failed to do what is called for in the OT or with Jesus teaching.
How many of us Christians today fail the Lazaruses all around us?
If Jesus identified with any movement of his time it would have been the Pharisees.