Why does the space shuttle produce so little lift when it has more wing area than a 737?

https://en.wikipedia.org/wiki/Space_Shuttle_orbiter
>Empty weight: 151,205 lb
>MTOW:240,000 lb
>Wing area: 2690 ft2 (249.9 m2[15])

https://en.wikipedia.org/wiki/Boeing_737
>Empty weight: 80,200–98,495 lb
>MTOW: 177,000–194,700 lb
>Wing area: 1,341.2 sq ft (124.60 m2)

Would it really have killed the shuttle designers to incorporate some kind of high lift system?

Also here is a free online MIT class about the space shuttle's design which features lectures by one of the lead designers:
https://ocw.mit.edu/courses/aeronautics-and-astronautics/16-885j-aircraft-systems-engineering-fall-2005/