some sentences

Hi,
Please could you check the following sentences:

The important step to good reputation acquiring is business etiquette. The first rule of business etiquette is the saving of time. The credibility to a person who is always late gradually decreases. The second rule is politeness and respect. The third rule is a working attitude. If you are able to work, you will quickly move up the career ladder.

Hi, here are my suggestions:

The [most] important step to [acquiring a] good reputation is business etiquette. The first rule of business etiquette is [to be on time]. {or maybe more generally “not wasting other people’s time”} The credibility [of] a person who is always late gradually decreases. The second rule is politeness and respect. The third rule is [an] attitude [of hard work]. If you are able to work [diligently], you will quickly move up the career ladder.

Thank you very much, Luschen!