But if the client is not prepared to wait their turn, or the lawyer is not prepared to prioritise the work, the relationship will fail. Having accepted the instruction, provide your advice in a timely fashion. Late advice is often worthless. With multiple instructions, project-manage the provision of advice. A common frustration is having to follow up on advice sought, promised, but not delivered.
Clients can, and do.
If you want to be a valued adviser rather than simply a legal technician, you will too. You have clients in different industries. You recognise the importance of knowing something of their businesses. Yet, ultimately, the market in which you are truly an insider is that for legal services. But the ideal lawyer will also be a key part of the client's industry.