<p>Every type of Engineering profession has far reaching effects on society;but since you said you have an affinity for helping people, try looking into Biomedical Engineering.</p>
<p>Here is a basic overview of what each Engineering profession does:</p>
<ol>
<li><p>Civil-- Builds (not personally built, but created), designs, and maintains–bridges, buildings, houses, environmental areas, parks, stadiums, etc. They have probably the most far-reaching and most recognizable effects, as anybody who lives in a house,works in an office building, seen a skyscraper, or been to a football game, or even been inside a national park has seen or observed the product of a Civil Engineer. Average Pay: 77,000–81,000.</p></li>
<li><p>Mechanical Engineer–Builds, designs, and maintains–mechanical equipment. Anything ranging from–home appliances, to complex planes and assembly systems are designed by Mechanical Engineers. Different disciplines to ME, like Aerospace Engineering focuses specifically on the designing of planes and rockets–space–or Materials Science Engineering (which is a combination of Civil, Environmental, Mechanical, and sometimes Chemical Engineering), which is responsible for the production of many things like complex metals, gems, stones, and construction material. Average Pay: pretty much the same as Civil, maybe slightly higher.</p></li>
</ol>
<p>3.Electrical Engineering–Designs and maintains anything dealing with electricity and electrical systems. Their products are typically microchips, electrical transformers/generators, and electrical appliances. Closely related to Computer Science Engineering. Average Pay: higher than most engineering disciplines, as it is around 80,000-85,000.</p>
<ol>
<li><p>Computer Science Engineering–Designs and maintains computer/database systems. Uses elements of Electrical Engineering to design websites, computer data, complex graphs and maps, files, and systems. Average Pay: 77,000-82,000.</p></li>
<li><p>Chemical Engineering–Designs and maintains chemical product, and the distribution of chemical systems. Uses are widespread and used in the fields of–Agriculture, Gases, hygienic products, make-up, nails, etc. Different disciplines are: Petroleum Engineering, Nuclear Engineering, Biochemical Engineering, and Materials Science Engineering. Average Pay: 80,000-85,000.</p></li>
<li><p>Bioengineering/Biomedical Engineering–Designs and maintains systems within an environment capable of supporting life. Applications range from the Medical Field (Biomedical Engineering, in which you would build artificial organs, limbs, etc), to helping increase the yield of crops (Biochemical Engineering), to designing new chemicals, viruses, cloning technology, genetic research, etc. Average Pay: same as Chemical Engineering.</p></li>
</ol>
<p>^Those are pretty much the main types of engineering disciplines; others like Agricultural, Petroleum, Nuclear, Materials Science, and Metallurgical (falls under the category of Materials Science) Engineering are all interdisciplinary and usually "borrow processes from the main 6 types of engineering–though they are equally rewarding and difficult as the others.</p>
<p>I sincerely hope I helped, and If you want further in-depth information on the Engineering Disciplines, look at [Explore</a> Majors in Engineering with World Wide Learn’s Online Education Guide](<a href=“http://www.worldwidelearn.com/online-education-guide/engineering/index.html]Explore”>http://www.worldwidelearn.com/online-education-guide/engineering/index.html)</p>