Political correctness wasn't an issue in Shakespeare's day. Richard III was short, hunchbacked, and malicious. In the version of the plays I've been watching, the actor's limp became more pronounced as his character became more powerful. Either way the meaning is evident. Richard plots against Edward.
Clarence is sent to the Tower.
Hastings is released. Richard promises to help Clarence. Edward is ill. Richard prevents the removal of the body until Anne agrees to marry him. Elizabeth is afraid that Richard will become Protector.