His father's death-bed wish of demolishing the Oxley Road house after his death. Until today, it is still standing, and daughter Lee Wei Ling is having enough of it, by posting her anger against her brother in her Facebook, just short of calling him a dictator.
PM Lee also showed a distinct bias towards the West, especially to the USA, as oppose to his father who would rather have a grand state visit to Beijing than to the White House. His stand on the South-China Sea issues also voiced a direct contradiction with that of China. Something that couldn't had happened during LKY's reign.
This spoilt brat is also known for slapping and shouting at other Ministers, especially those more senior than him and those close to his father, and even in public places. Wong Kan Seng should be able to testify to that.
Dhanabalan Slapping Incident
PM Lee Sacked Wong Kan Seng, Mah Bow Tan & Raymond Lim
Now, he is attempting to rewrite the constitution on Elected President, an institution painstakingly designed by his father. What's he up to? He is bringing in racial harmony and quality of candidates as mechanism to gradually bring the power of the Elected President down to the previous level where President is appointed by the Parliament, hence the PAP. A puppet or PAPpet, a symbolic figurehead, just like the Queen of England.
He believes the President should not be getting higher pay than the Prime Minister, which he had corrected prior to the last general elections, by slashing the salary of the President dramatically, whilst his remained mostly untouched.
Perhaps he is suffering from some kind of identity crisis: that he doesn't want to be seen to be hiding under his father's pants. The Dhanabalan slapping case exposed this fact clearly. That he wanted to be seen as himself and not his father's son. Not one who got to where he is, because of his father, and not himself.
By constantly changing the past, the institutions created by his dad, and removing all the old hecks previously working for Papa, he hoped to eventually bury the ghosts of LKY from his administration.