I think becoming an urban planner is great. It seems like in most of USA and Canada, urban planning is a lost art. Just look how most new suburbs are being built: curving streets going every which way and looping back onto themselves, massive big-box stores located miles away from houses, street arrangements where you have to drive for ten minutes when the straight-line distance is less than a mile, and huge tracts of characterless housing subdivisions. Occasional historic buildings pop up here and there, but they eventually get torn down to build more subdivisions or big-box stores, unless the government can save them quickly enough.
If you looks at well-planned areas, you'll find that most of them are quite old, from before World War II. During Eisenhower's highway building program and the suburban sprawl, quality urban planning was lost. Instead of being planned by geographers and engineers, new areas now planned by private developers who couldn't care less about the quality of their work, just the profit from it. All towns can do in respond by building better roads, which leads to more traffic. Some suburbs are rebuilding their downtowns to be nothing short of wonderful, but once you move away from the small central area, you have the same stereotypical suburbia.
Fascination with maps and urban planning is commonplace among aspies. Also, aspies are less likely to be driven by obsession with profit, so they may produce truly great work, as opposed to the most profitable work. So, perhaps we can regain the urban planning knowledge that was lost in the general public over the last 60 years.