You are not exploiting the person making the garments, you are exploiting the fact that the cost of living in Bangladesh is far below the cost of living in a Western nation.
The fact that the standard of living in Bangladesh is also lower does not mean that you are exploiting the worker. In fact, in many cases (especially employing them directly online as the GP is suggesting) you are helping to improve their standard of living.
The fact that the standard of living in Bangladesh is also lower does not mean that you are exploiting the worker. In fact, in many cases (especially employing them directly online as the GP is suggesting) you are helping to improve their standard of living.