What makes people trust you? Less so than your true reliability or assets, warmth is a crucial factor in establishing trust. People are more open to trusting those who portray themselves warmly in a non-competitive and friendly truthful manner. This theory is known as stereotype content model. It suggests that people are more likely to judge people based on their warmth than anything else, even intelligence and financial status.
While knowledge and money can earn you respect, warmth will elicit trust. Earn trust with warmth.