The chief danger of philosophers is that they corrupt the moral of their city in a twofold manner. First, they will deny any and all deities. They will not do this to adults, but to impressionable youth. Reason is their standard and religious revelation can never compete with reason. This was the first charge against Socrates.
Once the youth know that there is no "eye in the sky..making rules..and dealing with fools", they are free, within the limits of justice, to do and say what they will. The corruption of youths was the second charge against Socrates. "All things are lawful, but not all things edify" says Saint Paul. The corrupted youth will take this freedom from the law and further corrupt their peers, Saint Paul's advice not withstanding.
Philosophers, due to their above average intelligence, are generally found in positions of authority. From this position, they are free to pick and choose which youths to corrupt. The ideal career would be one where there is a "revolving door" of new youths to corrupt. Academia (professors) and food service (managers) are ideal for this purpose.
Philosophers are more influential than their eternally small numbers would suggest. In the course of a career, an ideally placed philosopher will come in contact with thousands of youths. Generally speaking, philosophers will not be at the top of the official power structure. They will stay in the middle of any structure, since any advance will take away precious time that could be spent corrupting the youth. The secondary reason that philosophers do not advance is that they will not able to influence their peers, if at all, compared to the youth that they mentor. Because they are so influential, philosophers will be the apex of the unofficial power structure. Although it seems strange to suggest that those with "power" would listen to someone lower on the chain of command, a moment of reflection will show the veracity of this statement. It is probable that the philosopher mentored this person in his youth and now this person has advanced in his profession holds his mentor, and his advice, in esteem.
People who state they want to be in a titled position so they can do good do not have the spirit of philosophy. Philosophers never want to be President. However, their secret desire is to advise the President in an unofficial capacity. "Appearance tyrannizes over truth". The person with an official title will take the blame and be responsible for any political intrigue.
The philosopher, as always, will be below the radar and be able to continue in his unofficial capacity of advising.
"Philosopher" is the secret name that only the philosopher knows. The public, friends and family call him by generic names and titles. They are so devious that they will always deny that they are, in fact, philosophers. Over the centuries, philosophy has taken on pejorative connotations and philosphers will always distance themselves from this term of abuse.
Philosophers know that morality is fluid. The chief charge against them is that they have no standard of morality. This is true. With the ever shifting sands of the moral, political and religious desert in which they live, reason and natural right, which has served philosophy since time immemorial, will continue to be the terra firma of the morally bankrupt.