Ingested a bird on t/o roll last summer (jt-9) It did compressor stall so we aborted. The engine continued to run with no adverse signs, but we decided to go back to the gate for inspection. The engine was shutdown on the runway and we found substantial damage to the fan and inlet area.
The point is an engine can suffer considerable damage and continue to run for an unknown period of time. My belief is its always better to return safely than to let it get out of hand. Primary consideration is always passenger safety, not the cost of fuel.