A bit of open mindness will not kill you, the same open mindness you'd like to receive from other people who you think find your habits disgusting.
First and foremost, you can eat the way you want: when it comes to western culture, the only thing we generally do not like are noises, eating with the mouth wide open (included speaking with full mouth), and (excessively) dirtying the table. Eating rice with hands will be seen (mostly) as strange, not disgusting.
Second, context. Are you eating at a formal dinner with your colleagues and a client? Eat with the fork, as everybody else. Are you eating at the work's canteen? Eat the way you prefer and let other deal with their limits. And so on.
Third, respect and open mindness: you are worried other peoples find you disgusting for eating rice with hands, but at the same time you show the same "closed mind" (in a way, ok? I'm not trying to offend you) in wanting to eat rice with hands at all cost otherwise you will not feel satisfied; believe me, eating with a fork will not starve you as will not change food nutritional content.
Even more if you are eating at a foreign restaurant, e.g. at an italian restaurant rice is cooked and thought to be eatean with a fork. Respect local culture, open yourself to a new experience, and try to learn a different way to enjoy food.
So, in the end: feel free to do whatever fit you most, don't be afraid of other people judging you (their fault) but at the same time don't close yourself in your garden (your fault)