Doctor Who: 8 Reasons The Tenth Doctor Was An Actual Monster
8. He Is Manipulative
The Tenth Doctor likes to get his way, and he doesn't care who he hurts to get it. Whether it's part of his plan to defeat an enemy or just getting what he wants out of people, Ten is highly manipulative.
Examples of this manipulation are everywhere, but one of the most notable is in The Waters of Mars, where he tells Captain Adelaide Brooke that she has to die, so the world progresses a certain way. Later, he decides to save her, but Brooke kills herself, knowing she had to die. Had Ten not spent so long manipulating her into accepting her fate, then this rescue might have ended differently.
He also manipulated romantic relationships with women including Elizabeth the First and Madame de Pompadour. While there may have been some feelings there, these relationships often existed to further his knowledge of alien plots. He was oblivious to Martha Jones' infatuation with him, but used her and moulded her into someone who would do whatever he asked without question.
There are too many times to count all the cold, calculated games he plays with people's lives, but it was too common for Ten and often ended badly. Just take a look at Voyage of the Damned and the tragedy of Donna Noble.