The -ing form can also be a noun. This is called the gerund. In this case, steering is a noun that means the action of steering. The word "to" is not important here. What is important is the phrase "committed to." That phrase is followed by a noun. I am committed to my family. I am committed to saving money. They are committed to ending poverty.

"to" can be a preposition or part of an infinitive. Examples: Joe goes TO THE OFFICE every day. (The verb "to go" is usually followed by the preposition "to" and a destination.) Joe wants TO WORK for the government. (The infinitive "to work" is the object of the verb "wants.") Verbs ending in "-ing" can be a verb in a past, present, or future continuous form, a present participle, or a gerund (a verb form which functions as a noun). Gerunds can be subjects, objects of a verb, and objects of a preposition. Examples: Joe likes chocolate. (object = chocolate (noun)) Joe likes to eat chocolate. (object = to eat chocolate (infinitive plus infinitive object)) Joe likes eating chocolate. (object = eating chocolate (gerund plus gerund object)) Joe is eating chocolate. ("eating" is the verb "to eat" in the present continous form) Now the sentence in question. I am personally committed to steering real change ... committed to = verb plus preposition "to" steering = gerund (object of preposition "to")