Tiny Tower: Really liking this app...very addictive time waster. Presently at 50 floors with 78 "bitizens" and 74 dream jobs. Does this app teach cultural tolerance?

Tiny Tower tips:
Save bux.
Upgrade elevator.
Evict all bitizens without dream jobs.
Maintain one store with max 3-coin stock on order for big spender (e.g. Recording Studio or Doctor's Office). When he arrives, use bux if necessary.
Maintain a list of recent searches noting both the store and the home floor.
Group stores to make it easier to shuffle staff while awaiting perfect employees.
Send delivery person to max 3-coin stock (translates to 3 bux savings).