Be poles/worlds apart phrase
If two things or two people are poles/worlds apart, they are completely dissimilar from each other in behavior, nature, or opinions.
The twins were separated at birth and raised in different environments. Therefore, they are poles apart.
Some students claimed that what they are taught in the classroom and what they saw on the test were poles apart.
If someone or something stands/sticks out like a sore thumb, they are so noticeable that the surrounding people and things notice them.
To do something differently
To be totally different from something.
What one person finds pleasant, delightful, or advantageous may be hated by another.
Different people like or do different things.
The origin of this phrase is not clear.