It's a bit shocking you can only see positive stereotypes of working in finance....
The old saying of "the love of money is the root all evil" is good place to start.
1. Around 1% of the population could be registered as high on the pyschopathy scale. The job sector with the highest proportion of psychopaths and sociopaths is finance. Generally, psychopaths aren't capable of having healthy relationships.
2. A lot of people working in the finance sector are very fond of cocaine, or drinking too much (especially so in London).
3. Memories of the credit crunch. Most of us can still remember the time when irresponsible twats in the finance sector gambled with other people's money, causing the worst global recession since the great depression. We also remember the way, you lot went crying to the governments to get bailed out by trillions of hard earned taxpayer money. Then, of course, a lot of those proceeds went to bank bosses in the form of obscene bonuses.
4. The kind of other stereotypes that might go along with someone working in the finance sector, would be narcisstic, arrogant, duplicitous, sociopathic and shallow.
5. The finance sector colludes in a shit load of tax evasion.
6. If you work in the finance sector, you're clearly not doing so to help others. This is a sector that is not only not beneficial, but in many cases, actively harmful to society and other people.
So, to sum up, if you want to avoid the chance of dating a narcisstic sociopath with a coke problem, not dating someone from the finance industry is a good starting point.