Shulchan Aruch 554:23 says one is permitted to work even before chazot if he will lose money. 554:24 says he will not see a siman bracha from that work.
Why would the mechaber go out of his way to allow work for davar ha’aveid yet say there is no siman bracha for that work which he is allowing?
Why would anyone want to follow this Halacha then if there is no siman bracha for this work?
What is the purpose of the heter of the work and for someone to waste his time doing the work if it won’t produce a siman bracha?