Why does transcription not have to be as accurate as replication? explain.

Transcription doesn't have to be as accurate as replication. The answer is simple that transcripts can not be store permanently. And so it is not accurate. as far as the question of the accuracy of replication concern, it is consider more accurate because of the following steps taking place in this process:
1) high selectivity of DNA polymerase 
2) exonucleatic proofreading

Ihaven't done that yet, so no idea,but this is not the right place to ask