A defendant that has prior bench warrants for their previous convictions has a much greater chance of their bail being set very high or being remanded until trial. Bench warrants are issued when a defendant fails to show up for court. The entire issue of bail is about whether or not the defendant will show up for their court proceedings, thus avoiding having to issue a warrant.
It is possible that past warrants may have been issued in error or were issued for invalid reasons. If these can be satisfactorily explained by the defense attorney, the judge may remove the warrants from their consideration.